Advance Tabco Add A 3 Tier Drawer Only, 24 5/8 x 18 x 21 inch Overall Size -- 1 each.Features: Units come fully assembled! Stainless steel drawers feature shd series drawers with Integral drawer slides & removable stainless steel drawer inserts. Includes 2 or 3 drawers with 2 concealed side panels (see photos). Drawer "safety stop" tab. Mounts from underside of open base table with included hardware.