This case is constructed of 3/8 plywood with a thick PVC laminate exterior. The case is assembled with heavy gauge aluminum extrusions and machine split riveted throughout. The corners are protected by heavy gauge steel ball corners. All catches and handles are spring loaded and recessed into the case for strength and sheer resistance. The lid hinges open and has a bare wood interior. Heavy duty 3 inch swivel casters are included with this case (installation required).