Tough, durable shipping case with usable interior space of 43.5" x 21" x 24". Made from 3/8" #1 birch plywood with ABS plastic laminated on both sides for superior strength and easy clean up. Designed to protect your gear and endure the rigors of shipment over and over again. Features (4) 3.5" Colson Heavy Duty casters, extruded aluminum angle trim, ball corners, deep tongue and groove closure between lid and case, riveted stainless steel hinge, plated steel recessed handles and latches. Lockable, requires padlock with up to 1/4" shank (not included).