1. Perfect Arm Support While Working on Your Computer or Work. 2. The memory foam is very comfortable for hands. For chair use only. 3. It reduces localized pressure on the wrist and eliminates the constant strain on muscles in the neck, arms and shoulders that so many computer users experience. 4. The armrest is extremely portable and installs simply and quickly. It can be disassembled in seconds. 5. The pad has been extensively tested for strength, and it will not crack or break. Note: For chair use only!!! Color: black + white Material: ABS engineering plastic + memory foam Package Contents: 1x Chair Computer Arm Rest (Chair is not included) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.