Single knob offers quick and easy adjustment of height and tilt. Platform swivels to preferred position. Keyboard and mouse gel wrist rests for comfort. Fits virtually every keyboard including the Microsoft? Natural. Workstation Type?Diagonal, curved or straight Glide Track Length?17-5/16" Keyboard Tray Dimensions?20-1/4 wide x 11 long. Color: Black/Gray; Workstation Type: Curved; Diagonal; Straight; Height (+/- Desktop): +1 1/4"/-4 1/4"; Keyboard Tray Dimensions (W x D): 20 1/4" x 11 1/8".