This road case is constructed of 3/8" plywood with a hard PVC laminate on the outside and a bare wood inside. The travel case is assembled with heavy gauge aluminum extrusions machine split riveted throughout and the corners are protected by heavy gauge steel ball corners. All heavy duty catches and handles are spring loaded and recessed into the case for strength and shear resistance. The lid hinges open and there are also heavy duty 4" swivel casters included for easy mounting to the case. Casters are supplied with all fasteners necessary to install. The outside dimensions of this case is specifically made to fit multiples in a standard 90" wide truck.