Strong, durable laminate helps resist against scratches and stains. Can be positioned 2" to 3-1/2" below worksurface. Holds keyboards up to 21-1/2w x 10d. Workstation Type: Straight; Sit-to-Stand Option: No; Height (+/- Desktop): +0" Above to -2" to -3.5" Below; Keyboard Tray Dimensions (W x D): 21.5" x 10".