Pro Ink 718 vs 721: which tattoo armrest suits your working position?
- 14 min reading time
The choice between Pro Ink 718 and Pro Ink 721 starts with the support you need when a client changes position, not with the highest figure in a specification. Choose the 718 when a single, rectangular arm support with adjustable height and tilt meets the demands of your station. Consider the 721 when the two ends of a contoured support panel need to be raised independently. The quoted height range is 68–111 cm for the 718 and 69–95 cm for the 721. Neither range tells you how much floor space is required with the cushion tilted or how much load the construction can safely carry.
Both models feature a black metal frame and synthetic-leather upholstery. According to the manufacturer, the Pro Ink 721 incorporates gas springs to adjust the height at each side independently. Its tilt is described as 180°, meaning 90° on each side. The 718 provides height and tilt adjustments, but the specification for this exact model does not document independent height adjustment at both ends. Neither product is a treatment chair or a medically certified positioning device. An armrest cannot guarantee the prevention of pain, fatigue or involuntary movement.
The buying question is simple: does your client's arm need one supporting plane that you reposition as a unit, or must the plane follow two different heights within the same panel? Below we examine that decision alongside the verified dimensions, clearance, safe adjustment and cleaning. Compare the Pro Ink 718 and Pro Ink 721 with your actual chair and working stool, rather than choosing from a studio photograph alone.
1. The adjustment that matters during a session
A conventional freestanding armrest is adjusted as a complete piece: set the cushion height and angle, secure the mechanism and check the client's arm position. If the chair is turned or the artist changes sides, you may need to move the entire support. This is the basic working arrangement of the 718. Its stated 43 cm height difference gives a broad vertical adjustment range, but it does not establish a safe loading capacity, number of locking positions or compatibility with every treatment chair.
The 721 adds an adjustment to the geometry of the cushion itself. Its two sides are independently height-adjustable with the gas-spring mechanism described by the manufacturer. You can therefore set one side higher when a flat surface does not match the selected arm position. This is not powered adjustment or automatic positioning. Make changes with the load removed and confirm that the chosen position holds before allowing the client to rest their arm on the cushion. The upper value of 95 cm is lower than 111 cm on the 718, but height alone is not a measure of usefulness.
| Feature | Pro Ink 718 | Pro Ink 721 |
|---|---|---|
| Exact SKU | 141169 | 149382 |
| Stated height | 68–111 cm | 69–95 cm |
| Adjustment | overall height and cushion tilt | independent side heights with gas springs; tilt |
| Stated tilt angle | no verified numerical angle | up to 180°, expressed as 90° each side |
| Support | rectangular, 71 × 38 cm in the drawing | contoured panel, approximately 70 × 30 cm in dimension drawing |
| Base | metal frame; marked foot dimension 40 cm, not a full footprint | metal frame with footplate, about 56 × 36 cm in drawing |
| Cover | black synthetic leather | black synthetic leather, foam padding |
| Additional holders | check the supplied parts | optional attachment described; inclusion not established |
2. Cushion shape is as important as height
A useful armrest supports the body part that must remain in position for the tattoo, without requiring the client to keep their shoulder raised or twist their wrist. Identify the actual contact zone: is support needed for the forearm alone, the entire arm with the elbow, or temporarily another body part? A comfortable-looking photo does not establish that a pose suits every client. Discuss the position beforehand and adapt it if pressure or tingling develops.
The 718 has a rectangular cushion on an adjustable metal frame. A continuous plane can be practical when the ends do not need separate adjustments. The drawing in the current manufacturer gallery for SKU 141169 shows a 71 × 38 cm cushion, a height of 68–111 cm and a marked foot dimension of 40 cm. That last arrow does not provide the complete length and width of the base. Use the nominal dimensions for an initial plan and check the actual setup where precise clearance matters.
The 721 has a contoured panel on two uprights. The drawing in the current manufacturer gallery for SKU 149382 shows a panel approximately 70 cm wide, 30 cm deep and 4 cm thick, with a base about 56 × 36 cm. Its file number is 148382, but it is linked from the current 721 product page identified by SKU 149382. The nominal cushion depth is 38 cm on the 718 and 30 cm on the 721; “wide” therefore does not establish a greater supporting area on the 721. The meaningful differences are shape and adjustment method. The drawing does not guarantee usable contact area or free clearance at every tilt angle.
Match the manufacturer’s 718 data and the 721 model data and drawing to their respective exact SKUs. A different image file name does not change the product identity.
3. Why adjust each end independently?
According to its manufacturer, the 721 uses integrated gas springs to let the two ends of its panel move independently. Consider a client sitting slightly turned toward the artist: their elbow and hand may naturally arrive at different heights. Adjusting each end can create a sloped supporting plane while leaving the base in position. The purpose is to find an accessible, supported working position—not to prescribe a medical posture or claim that a particular angle will prevent muscle strain.
The wording 180° (90° on either side) deserves special attention. It is the manufacturer's stated description of tilt and must not be read as proof that the entire metal base rotates 180°, or that every imaginable panel angle is safe under load. With the cushion tilted, the area projected over the base and access to the locking points may change. Examine the actual stops, check the gas-spring mechanisms and confirm that the base remains properly supported on a level floor. The published figure does not replace the exact model's operating instructions.
Never make an adjustment simply by forcing a loaded cushion. Where necessary, ask the client to lift their arm while the mechanism is changed, resecure every adjustment and verify that the assembly is stable. No verified safe load or maximum permitted body weight was established in the model sources reviewed here. The mass of the furniture, its frame thickness or the appearance of a sturdy footplate is not a substitute for a load specification.
4. Three changes of client position to plan for
Working on the forearm with a seated client. Determine where the elbow, forearm and hand actually sit relative to the chair. With the 718, the entire support can be moved and its height and tilt changed for the job. Check the lowest and highest chair positions you use, and make sure the hand does not hang in an unsuitable position beyond the supporting surface. With the 721, independently adjusted panel ends can be useful where a diagonal arm position suits the client better. Neither product guarantees a perfect fit for every body or chair.
Changing to a partially reclined position. Reclining the backrest changes the path of the client's arm toward the cushion. The remembered centimetre height is no longer the entire answer. Check whether the base must move, whether the elbow continues to rest without forced rotation and whether the artist can work around the chair. The 718 offers more height at the top of its range; the 721 offers a shaped panel and side-to-side adjustment. These are functional differences to test, not claims of universal compatibility.
Moving to the opposite side of the chair. A change of artist position may put the tilt control, footplate or locking mechanism somewhere less accessible. Check whether the artist can still reach the working area without stepping over the base. For the 721, reassess both ends after a change rather than assuming a previous diagonal setting remains appropriate. For the 718, review the overall height and angle and move the frame if required. A base may fit on the floor while one of its feet still hits a wheel of the work stool. Neither support should obstruct a safe route around the treatment station.
5. Measure the panel and floor clearance
The higher 111 cm upper setting of the 718 may matter when the client's chair places their arm at a higher level. The 721's stated maximum is 95 cm, so compare at least two situations on your plan: your lowest usual working position and the highest position in which the arm actually needs support. Do not confuse the adjustable column height with a guaranteed uniform elevation across an inclined cushion. One end may be higher than the other, particularly on the 721, and the working height relevant to the client is the contact point of their arm.
The drawing for the 721 indicates roughly 70 × 30 cm for the support and 56 × 36 cm for its metal base. That is sufficient to prepare a first floor plan, not to promise that the moving panel fits within those same dimensions at every angle. Check the free space around the tilted end and any planned accessory. Examine the distance from the footplate to chair legs, pedals, trolley wheels and cable management. A footrest or metal plate visible in the pictures does not make the armrest a step stool or establish permissible full-body loading.
Good room planning also includes cleaning and access. The RIVM explanation of NEN-EN 17169 stresses that the layout of a tattoo workspace should allow cleaning and appropriate hygienic working methods. Keep passageways and necessary hygiene facilities reachable. This guidance does not certify either model or supply a missing load rating.
6. Upholstery, barriers and hygiene between clients
Both supports use synthetic leather over a metal construction. The 721 listing also mentions foam under the shaped panel. Being easy to wipe does not mean a cover is compatible with all disinfectants, concentrated alcohol products or solvents. Follow the care requirements of the precise material and the instructions on the permitted cleaning or disinfecting product. A support intended for client contact should not become a convenient shelf for uncapped pigment containers or unrelated chemical products.
The RIVM guidance distinguishes between cleaning and disinfection. Surfaces and equipment are cleaned following a tattoo session; surfaces that may have come into contact with skin, blood or ink splashes require appropriate disinfection after cleaning. The RIVM specifically refers to an armrest when explaining potentially contaminated surfaces. A disposable barrier is not proof that subsequent cleaning can always be skipped. Respect the prescribed contact time and the studio's method for removing and disposing of contaminated coverings.
7. Optional attachments and what is in the box
For the 721, the manufacturer's description refers to the possibility of attaching an accessory tray and a glove or towel holder. It also links to accessories advertised for Pro Ink 720. That establishes neither that those extras are supplied as standard with SKU 149382 nor that every combination fits without a specific bracket. If an attachment matters to your station, verify its model compatibility, attachment hardware and the actual sales package separately.
8. A practical buying decision for your station
Sketch the chair, artist's stool, lamp, trolley and intended arm position. Next, distinguish between two real problems: insufficient overall support height, or insufficient ability to set different heights within one support panel. These cannot be solved simply by choosing the model with the larger maximum number. Check both a seated and a reclined client position if your work involves both, and make sure controls and floor clearance remain accessible.
Before ordering, confirm five items. Does the stated range cover the contact height you need? Does the cushion support the required part of the arm without forcing wrist or shoulder position? Will the base leave room for the artist and equipment? Can the adjustment be made and secured without load? Can the upholstery and moving parts be maintained under the studio's hygiene procedure? Where technical tolerances or loads decide the answer, obtain verified model documentation rather than guessing.
The 718 deserves first consideration for a rectangular supporting plane, a taller maximum setting and conventional height-plus-angle adjustment. The 721 is the candidate when independently setting the two sides and using a shaped panel genuinely serves your working position, provided its 95 cm stated maximum height is sufficient. Neither conclusion implies a guaranteed improvement in tattoo accuracy or physical health. Compare the current tattoo armrest collection and the individual product cards, and check availability at the time you order.
Frequently asked questions
Is Pro Ink 721 necessarily better than Pro Ink 718?
No. The 721 offers independently adjustable panel ends; the 718 offers a wider stated height range with a simpler supporting plane. Choose the feature your working position actually requires, not the longest list of adjustments.
Can both ends of Pro Ink 718 be raised independently?
Independent end adjustment is not documented for exact SKU 141169. Height and overall cushion tilt are confirmed. The 721 is the model for which separate side heights are explicitly described.
What does 180° mean on the 721?
The manufacturer describes up to 180° of tilt, expressed as 90° on either side. This is not evidence that the entire metal base rotates through 180°. Check the actual stops and securing mechanism before use.
What are the dimensions of the 721 cushion and base?
The associated dimension drawing indicates an approximately 70 × 30 cm panel, around 4 cm thick, and a 56 × 36 cm base. Allow additional clearance for the inclined panel and any accessories.
Can the client place full body weight on either armrest?
No verified maximum permissible load was found in the reviewed model information. Do not assume these supports are chairs, steps or whole-body supports. Seek a manufacturer rating when load is essential to your intended use.
Are holders and trays included with the 721?
Attachment options are mentioned by the manufacturer, but inclusion in the box is not established. Check the contents and compatible mounting hardware separately, including when an accessory is listed for Pro Ink 720.
How should I clean the cushion between sessions?
Clean as directed for the upholstery and follow applicable tattoo-studio hygiene procedures. Disinfect where required with an appropriately authorised product, respecting its label and contact time. Check material compatibility first. Synthetic leather, a metal frame or a disposable cover does not make the support sterile.
Prohaar Editorial Team · Product and source information checked on 14 October 2026. Consult current product instructions and the RIVM guidance when organising your workplace.