The 1740 Protector Case has four extra-deep, base-to-lid locking cleats for stacking stability with automatic pressure equalizing and an O-ring seal creating watertight, crushproof and dustproof protection for your firearm. Other features include a 6-piece pick-n-pluck foam set, Wide-track polyurethane wheels with ball bearings and nylon hubs, fold-down side handle, double-throw latches, stainless steel hardware and padlock protectors with a 41"x12.9"x12.1" interior.