This Gator 4-Space Rolling Rack Bag is perfect for musicians, audio engineers, and anyone who needs to transport their effects processors, recording equipment, or sound modules on the road. It's lightweight, with a retractable tow handle and recessed wheels for easy maneuvering. The interior is reinforced with a polyethylene frame and an internal aluminum valance for stability. The exterior is made of tough 600-Denier nylon and has an exterior pocket for storing cables. Interior Dimensions: Length 12.50', Width 19.00', Height 9.00'. Exterior Dimensions: Length 14.50', Width 21.25', Height 13.75'. Weight: 15.00 pounds.