The C25 mobile work center has one large lower shelf plus a 4-compartment upper shelf for plenty of handy storage and organization. The top portion of the tool trolley offers a spacious, lockable tool storage area, with a sliding inner tray for organization.The lid opens without disturbing the work area on top. The top has a recessed worktop with a thin foam lining (approximately 13" x 15") that can be kept horizontal when you fold the top over for access to the tools inside. This heavy duty cart features a molded plastic organizer for 1/2" sockets and padded liners for all external shelves. There are four 4" casters, 2 fixed and 2 swiveling (one with brake). Measures 17 3/4" wide x 32" high x 33" long overall (48" with top open) and weighs 70 pounds empty. Static load capacity: 440 lbs