Clamp on Mouse Platform/Clip on Mouse Pad Rotating 360 Degree, Ergonomic Mouse Tray Attachment, Office Mouse Pad, Slide Out Mouse Tray Clamp on Mouse Platform: Tool free. Your new mouse platform will clamp on your desk in seconds No DAMAGE TO EXSISTING DESK: No need to put holes in your existing desk Extra Space: Under desk Shelf expand more space for holding a million different things such as your speaker, phone, mouse, or tablet. Pain Free and Pain Relief: Ergonomic Mouse Tray design keeps you in correct body postures for working or reading on computer screen to prevent shoulder, back, and wrist pain and injury from bad postures. Easy Clip on Mouse Pad: Clip on desks from 0.65 inch up to 1.5 inch thickness, adaptable for right or left hand users. We DO NOT recommend using on table with edge slope and edge with decorative strip or glass office table. Rotates 360 Degree Mouse Tray: Rotates under the desk to store when not in use.