Vaydeer TJ2011 Computer Hand Bracket Mouse Pad Metal Lazy Arm Support Cantilever Wrist Pad 1. 360-degree flexible rotating arm bracket, ergonomic design and comfortable office 2. Avoid long-term suspension of arms, effectively relieve fatigue of arms and shoulders, and correct poor sitting postures 3. Easy adjustment of high and low three gears, convenient fixing screw holes, can be parallel to the desktop & can be lower than the desktop 4. Ergonomics is 4cm lower than the comfort of the desktop, close to nature 5. Silica gel on the jaws protects the table top from slipping and scratches 6. Chain design, free to rotate as you want 7. It is easy to install without punching. The desktop supports a table with no slope and a thickness of less than 55mm. The gap between the barrier rods under 55mm of the table edge must be greater than 90mm before it can be used. 8. Material: metal + ABS 9. Net weight: 750g 10. Dimensions: 360 x 94 x 121mm