The Grainger Approved Rolling Tool Box is a portable storage solution for tools and small parts. It features smooth-rolling 5" casters for easy mobility, with two fixed and two swivel casters. The box is constructed of 22 gauge steel with a durable powder-coat finish to resist rust and scratches. It has a lockable lid to secure contents. The interior dimensions are 20"W x 9"D x 7"H. The weight capacity is 200 lbs. This tool box provides portable organized storage for garage, shop, or jobsite use.