Product Description Size: 13 * 13 * 19 cm Color: Black Material: High-strength ABS board Package Contents: 1 * Computer Hand Bracket 1. MATERIALMade of durable ABS and plastic, the padded memory foam adheres firmly to the surface and minimizes wrist and shoulder stress. 2. ERGONOMIC DESIGNFully adjustable 180 ball joint is adjustable for left or right hand users, effectively helping to promote blood circulation. 3. EASY TO INSTALLNo assembly required It can be easily rotated out of the way and carried in a briefcase or computer bag. 4. WIDELY USEDSuitable for desktop devices, convenient for home or office use. Play and work in comfort for hours. 5. HELPFUL- The computer armrest reduces localized pressure on the wrist and eliminates constant strain on muscles in the neck, arms and shoulders.