With a retractable extension handle Strong lightweight open cell core with solid wall design. Easy open Double Throw latches. O-ring seal. Cases are kept watertight through the use of a tongue and groove fit and a polymer o-ring. Automatic Pressure Equalization Valve balances interior pressure and keeps water out. 3 level Pick N Pluck™ with convoluted lid foam. This foam is pre-cut which allows you to customize the interior by half inch cubes. Trace out the item you want in the case and simply pluck the foam out by hand no tool required. Stainless steel hardware and padlock protectors. Backed by the manufacturer s limited lifetime warranty.