Kensington 60066 Articulating Keyboard Platform With SmartFit System, 30-1/2 x 11-3/4, Dark Gray Platform slides easily to expand from 23.75" to 30.5" wide for multiple workstation styles. Adjusts 7.5" in height, +/- 15 degrees in tilt and rotates 360 degrees. Microfiber cloth wrist rest wicks away moisture and dirt, keeping it soft and comfortable. Adjusts to match your personal comfort color, according to SmartFit(TM) guidelines. For corner or straight workstations (21" track).