Product description Size: 13*13*19cm Colour: Black Material: high-strength ABS board Package content: 1*computer hand bracket 1.MATERIAL Made of durable ABS & Plastic, padded memory foam tightly attaches to the surface, minimizes wrist and shoulder strain. 2.ERGONOMIC DESIGNFully adjustable 180 ball joint is adaptable for left or right hand users, effectively contribute to promote the blood circulation. 3.EASY TO INSTALLNo assembly needed It can be easily rotated out of the way and be carried in a briefcase or computer bag. 4.WIDELY USED Suitable for desktop up thick, convenient for home or office use.Play and work comfortably for hours. 5.HELPFUL- The computer armrest reduces localized pressure on wrist and eliminates the constant strain on muscles in the neck, arms and shoulders.