Size: 13*13*19cm Color: Black Material: High-strength ABS board Package Contents: 1*computer hand rest MATERIAL: Made of durable ABS & Plastic, padded memory foam attaches firmly to the surface, minimizing strain on wrists and shoulders. ERGONOMIC DESIGN: Fully adjustable 180-degree ball joint is adaptable for left- or right-handed users, effectively helping to promote blood circulation. EASY TO INSTALL: No assembly required. It can be easily rotated out of the way and carried in a briefcase or computer bag. WIDELY USED: Suitable for desks up to thickness, convenient for home or office use. Play and work comfortably for hours. HELPFUL: The computer arm support reduces localized pressure on the wrist and eliminates the constant strain on muscles in the neck, arms, and shoulders.