Cubic inch capacity is 23,419. Made of 14, 16 and 18 gauge steel. Ball bearing track slides. 125-lbs. capacity (250-lbs. for drawers with 2 sets of slides) Adjustable detents 12 to 24-lbs. pull force Heavy-duty locks with tubular key. Recessed aluminum extruded drawer pulls. 100% full extension drawers. Vinyl top and drawer liners included. 6" x 2" Poly casters - 900 lbs./caster. Made in USA Specification COLOR Dual Black NUMBER OF DRAWERS 12 CAPACITY CUBIC [IN] 23,419 PRODUCT LINE 550S DEPTH [IN] 25-1/4 HEIGHT [IN] 41 WEIGHT [LBS] 475 Proto 550S 50" Workstation 12 Drawer - Dual Black