The Ergo-Comfort Articulating 28-Inch Keyboard/Mouse Arm, model 2137, is an adjustable-height keyboard tray with built-in wrist support and mouse pad, designed for use by individuals with carpal tunnel syndrome or mobility disabilities. The height of the phenolic platform can be adjusted within a six-inch range, and the tilt can be adjusted within a 30-degree range (from minus 15 to plus 15 degrees) using a tilt adjustment knob. The tray also rotates a full 360 degrees. It is mounted to a desk on an arm that moves smoothly on a precision glide track with a low-profile mechanism to provide clearance for the user's knees. The mouse pad is a clear Lexan surface that lifts up to display pictures, memos, clippings, or notes. The platform is wide to provide sufficient keyboard and mouse surface for left- or right-hand use. The built-in Therasoft foam wrist rests distribute weight to minimize pressure points while improving circulation. Mounting hardware is included. DIMENSIONS (HxDxW): Platform is 0.25 x 11.75 x 28 inches. The glide track length is 21 inches. WEIGHT: 16 pounds. COLOR: Black granite fleck.