The Bauer Modular Storage System from Harbor Freight can be configured in more than 50 combinations. The durable, inter-locking system features three toolboxes, one storage tote, and one organizer, and can be easily maneuvered around rugged areas providing versatility and mobility. The base of the modular system is a rolling toolbox with large, smooth-rolling wheels and an extendable handle with a comfort grip. The organizer is ideal for small tools, accessories, and parts, offering 12 removeable trays and a transparent lid. The tote is easy to carry with two side handles and has a weight capacity of up to 50 lbs.