Height-Adjustable Footrest, 20.5w X 14.5d X 3.5 To 21.5h, Black Create a standing solution for your workspace by pairing with your standing workstation or table. Black steel and aluminum construction with black nylon platform. Platform is 20"W x 12"D. Infinitely adjustable with cam-lock to set at desired height for user comfort, from 3˝" to 16".