StarTech.com Under-Desk Keyboard Tray, Clamp-on Ergonomic Keyboard Holder, Up to 12kg (26.5lb), Sliding Keyboard and Mouse Drawer with C-Clamps, Height Adjustable Keyboard Tray (3.9/4.7/5.5 in)

HEIGHT ADJUSTABLE: The sliding keyboard tray clamps feature three height settings (3.9, 4.7, and 5.5 in) from the desk surface to the tray. This black clamp-on keyboard tray provides a large area (27.5x12.2 in) that supports up to 26.5 lb. EASY TO INSTALL: Once assembled, the keyboard drawer is secured to the desk by tightening the clamps by hand. The clamps have anti-slip pads for stability and to protect the desk surface. Each clamp occupies very little space, 1.8x2.5 in. For desks up to 2.3 in thick. EFFORTLESS USE: The under-desk keyboard tray features sliding rails for easy access, The curved front edge of the tray protrudes out by 0.6 in allowing for quick location of the tray when it's retracted below the desk. The front of the keyboard and mouse tray extends up to 8.5 in from the edge of the desk. COMFORTABLE: The front edge of the pull-out keyboard tray is ergonomically curved for wrist comfort. In addition, the 0.15 in lip on the back of the keyboard holder aids in preventing