Automatic purge valve, Tough double-throw latches, Retractable extension handle and quiet rolling stainless-steel bearing wheels, Stainless Steel hasp protectors, Rubber overmolded handles, Removable Polycarbonate card holder with front or side placement, Includes one 7-piece Pick N’ Pluck™ foam set, Maximum airline check-in size (check with your airline for exact measurement requirements), Watertight O-ring gasket,