Seahorse cases are USA made waterproof cases. Watertight, airtight, and crush resistant, Seahorse cases are made to withstand the harshest conditions. All cases come equip with dual twist locking latches and a molded in padlock hole to fit standard sized master lock and an autmatic pressure release valve. Seahorse's automatic pressure release guarantees a perfect seal by incorporating its own O-Ring under one of the latches. Meets the airline industry’s ATA-300 specification.