Features: Evenly distribute the weight evenly distribute the weight of the entire forearm and elbow. The weight of the forearm is distributed over a larger area. Reducing local pressure can reduce local pressure on the wrist and eliminate the continuous pressure on the neck, arm, and shoulder muscles experienced by many computer users. Useful tricks: Behind its simplicity, the mat hides some useful tricks. When the front arm is placed at the top of the padlock itself, it can be adjusted to the desired position. Easy to install: Two units (one on each side of the keyboard) can be installed to fully support the forearm. The armrest is very light and easy to install. Safety: The mat has undergone extensive strength testing,durable. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement escription:Material:ABS Color:Red,Black Size:13x19x13cm Package List: 1x Computer Arm Rest