Specification: The product adopts high-strength ABS board, which is durable. Handrails are very portable and easy to install. It can be disassembled in a few seconds and can be carried in a briefcase or computer bag. It can be adjusted to the required position, and when the front arm is placed at the top, the pad will lock itself in place. The weight of the forearm is distributed over a area. This reduces the local stress on the wrist and eliminates the constant tension in the neck, arms and shoulder muscles experienced by many computer users. Memory cotton wristband is comfortable and soft, which is beneficial to blood circulation after long-term use. describe: Name: adjustable extension armrest pad bracket General Use: Commercial Furniture size: 29 x 13cm Material: PU+ABS colour: red+black Package Contents: 1 x Armrest pad Only the above package content, other products are not included. Note: Light reflection 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.