Adjustable Underdesk Keyboard Drawer with Storage Adjustable Underdesk Keyboard Drawer with Storage Fits almost any keyboard 3M Precise Mousing Surface, gel wrist rest, and built-in cable management Endorsed by the American Physical Therapy Association Slide-out mouse tray and drawer for Post-it notes and flags are interchangeable on left or right. Three height positions. Workstation TypeStraight Glide Track Length15-1/2" Keyboard Tray Dimensions23 x 14 Mouse Tray Dimensions9-1/2 x 8 Mousing Surface Attaches on Right or Left Side Removable Mousing Surface Height Adjustable (Above to Below Desk)3-1/2" below Sliding Tray Blue