Premium Keyboard Manager adjusts effortlessly with a simple one-handed motion that instantly repositions keyboard without the use of locks or levers. Keyboard adjustment lever lets you adjust your angle by sliding lever from left to right. No need to reach under the keyboard to locate a knob or lever. Mouse platform mounts to right or left side of keyboard platform and lets you customize your mousing position in every way: from height at the side of the keyboard or above the numeric keypad to horizontal position for depth or lateral adjustment. Nonintrusive keyboard platform offers total knee clearance. Curved mechanism brings you closer to the desk, while providing a 6-7/8" height adjustment (2-5/8" above track to 4-1/4" below track) and a 21-5/8" track. Plush gel cushion lets you work in comfort for hours. Durable keyboard platform fits most standard keyboards and desks. Meets or exceeds ANSI/BIFMA standards.