Get comfortable behind your desk using this convertible keyboard platform on an articulating arm. Position and angle your keyboard to optimize comfort and minimize forearm and shoulder strain. The spring-assisted, 21" glide track moves effortlessly and locks both the lift and 7" adjustment with 2-1/2" height adjustment above and 4-1/2" below track. A release handle adjusts the independent tilt up to 15 degrees, and the swivel mouse platform can be used on the left or right side, as well as inline, over or forward at platform height or above height. No tools are required to switch from left-handed to right-handed mousing. Platform is flush with the worksurface.