3M-DRAWER,KEYBOARD,UNDERDESK. Underdesk Keyboard Drawer, 23 x 14, Black. Drawer slides on steel ball bearings and offers three height positions. Slide-out mouse tray with Precise™ mousing surface. Soft gel wrist rest plus cable management system. Fits most keyboards. Endorsed by the American Physical Therapy Association. Workstation Type—Straight Glide Track Length—15-1/2". Color(s): Black; Keyboard Tray Dimensions (W x D): 21" x 12 3/4"; Mouse Tray Dimensions (W x D): 9 1/2" x 8"; Height (+/- Desktop): -3"/-4 3/4".