VIVO Clamp-on Mouse Pad: This platform holds your mouse at an ergonomic, comfortable position. The sturdy clamp fits desks up to 2' thick and holds up to 2.2 lbs. Durable design makes this mouse pad ideal for long-time work and gaming -Patent Pending- Rotating Design: Find just the right angle for your wrist as well as ideal placement for the 10.7' x 8.6' platform with smooth 360° rotation. This flexibility also creates space efficiency, since the tray can rotate under the desk when not in use