This 41-inch wide 15-drawer rolling tool storage combo is constructed of double-wall steel for strength and durability. It has ten 100-pound load capacity drawers that offer smooth and quiet operation. It also has a heavy-duty keyed internal locking system to safeguard tools. The load rating is 1,500 pounds with reinforced mounting channels and it has four 5-inch x 2-inch casters, two of which lock and swivel.