Made of heavy-duty canvas with lock-stitched seams and a 12-gauge steel frame, MARSHALLTOWN's 20" x 7" x 15" Canvas Tool Bag reliably holds a variety of tools. It has a waterproof masonite bottom and the handles, billets, and buckles are riveted to frame. The bag comes with an inside pocket to prevent small tools from being lost. Choose to have a leather bottom that adds extra durability. Internal base width 6".