- Easy installation: The sturdy desk clamp attaches the mouse pad to desks up to 2 inches thick without tools and without damaging the surface. The clamp tightens for a stable setup and smooth adjustment. - Pain relief: The ergonomic mouse tray positions your arm and hand for a neutral posture, helping prevent shoulder, back and wrist pain and damage caused by poor posture during work or reading. - Extra space: The shelf beneath the desk surface adds storage for speakers, phones, mice, tablets or other accessories, keeping the top clear. - Rotating design: The 9.8 x 7.7 inch platform offers smooth 360-degree rotation for optimal wrist angle and placement. When not in use, rotate the tray under the desk to save space. Use scenarios: - In a compact home office, clamp the tray to the desk to keep the mouse within easy reach while freeing surface space for a monitor and documents. - On a shared or multi-use desk, use the under-desk shelf to stow a phone and a compact speaker, helping keep cables organized. - During long design or reading sessions, adjust the wrist angle with the rotating platform to minimize strain and improve comfort.