Pelican 1520 Case With Padded Divider Watertight, Crushproof & Dust Proof Easy-open, Double-throw Latches Open Cell Core With Solid Wall Design Strong & Lightweight Automatic Pressure Equalization Valve Watertight, crushproof & dust proof Easy-open double throw latches Open cell core with solid wall designstrong, light weight Automatic pressure equalization valve O-ring seal