3M Adjustable Keyboard TraySet up an ergonomic workstation with the 3M Adjustable Keyboard Tray. Its easily adjustable design lets you place your keyboard and mouse at a proper level to increase comfort and productivity. Simply tilt the platform to adjust the height and turn the knob to adjust the tilt. Height and tilt indications make it simple to find and maintain your optimal position. The keyboard tray mounts under your desk, saving space and providing a sturdy area to work