This Pelican 1640 Transport Case is an unbreakable, watertight, crushproof, airtight, dustproof, chemical resistant and corrosion proof hard case. It is made of Ultra High Impact structural copolymer that makes it extremely strong and durable. It has a 6.4 mm neoprene o-ring, easy open double throw latches with stainless steel hasp protectors provide added strength and extra security. It also has a built-in Pressure Equalization Valve for changes in altitude or temperature. It comes comes with a fold down main handle, large side trunk handles, 7.0"" extension handle and 4 strong polyurethane wheels with stainless steel bearings. All trademarks are registered and/or unregistered trademarks of Peli Products, S.L.U., its parent, subsidiaries, and/or affiliates.