Premier Series 27" Keyboard Platform with control zone offers an ultra-thin design. Exclusive Control Zone designed to improve the way you work. Height and tilt indicators allow consistent customized positioning for superior ergonomic comfort. Leverless lift-and-release mechanism has 6" height adjustment range. Platform features maximum knee clearance. Conveniently positioned tilt knob adjusts positive 10 degrees to negative 15 degrees without having to reach under the platform. 27" wide durable phenolic platform with soothing gel palm rest accommodates inline mouse use on the left or right of the keyboard. Meets or exceeds BIFMA standards.