Save Desk Space: This 26.8” (32.5” including clamps) x 11” under-desk keyboard tray holds your keyboard and mouse below the desktop for added work space. The 17” pencil drawer provides extra storage for small accessories Height Adjustable for Ergonomic Typing: Easily slide the tray in and out, and enjoy ergonomic typing angles that relieve stress on your wrists and shoulders Sturdy C-Clamps: Attach the keyboard tray/pencil drawer to your workstation without causing any damage to your desk (3.35” Maximum Desk Thickness) with sturdy C-clamps that hold everything tightly in place Easy Installation: All hardware and instructions are provided for assembly, and mounting your keyboard tray to the desk is an easy process with the adjustable clamps Capacity: The tray holds weights up to 11 lbs and sits 1.5” to 5.75” below the desk (depending on your table thickness). Please Note: This tray is not compatible with desktops that have beveled edges Enjoy the benefits of an organized work space and increased ergonomics with Clamp-on Height Adjustable Keyboard Tray with Pencil Drawer (MOUNT-KB05-4DH) from VIVO! Win back valuable desk space by adding a lower-tier surface for the keyboard, mouse, and other small items. Designed with user-geared features such as smooth gliding motion for easy placement, height adjustable C-clamps for convenient mounting, and anti-skid padding for scratch resistance, this mount was built to perform! The solid steel track construction makes this mount extra sturdy and guaranteed to last. The under-desk tray placement creates an ergonomic setup that decreases fatigue and muscle strain on the neck, back, and shoulders. The sleek, black appearance adds a classy look to any office while providing ample support for your keyboard and accessories. All hardware is provided for easy installation to get your tray mounted and organized in no time!