Product Size: 300 * 140 * 40 mm (11.8 in * 5.5 in * 1.58 in) Ergonomic Combination: Our keyboard wrist rest can reduce wrist pressure, minimize pressure on neck, arm and shoulder muscles, and relieve fatigue. Ergonomic Combination 2: The mouse pad wrist rest can support your hand and wrist very comfortably, perfect for gamers, office workers, editors, etc. Our mouse gel pads keep your arms cool and comfortable: our office chair arm pads have cooling gel tops designed to keep your forearms and elbows comfortably cool. Extended Desk Arm: The desk arm is too short, we can help the limited adjustability of the desk chair can lead to pressure in the upper body; use our ergonomic armrests as risers to get a better sitting position. 180 Rotation: This desk armrest is self-adjusting. However, you don't have to use it. Just place it parallel to the table so it doesn't take up your space. It looks neat and is very useful. Easy Installation: Our mouse wrist rest is simple and easy to install and can be firmly attached to any chair in just 4 quick steps.