100 box tube Aluminum frame, same strength as steel but lighter. Tandem 3500k Dexter torsion ride axles, electric brakes, heavy duty wall liners, led lamps, drop down windows, front and tail by sides, rear window slides. Collapsible rear tack area. 35 gallon water tank. Blanket bar and hooks. Mini sized ties added. 1 2 in rubber mats. 2 pop up vents. Spare tire included.