The Pelican 1040 Accessories Case with Liner is constructed of a durable polymer shell that is watertight, crushproof, and dust proof. This case features foam padding and is waterproof with a pressure valve that allows air to enter and exit the case while keeping water out. The 1040 Accessories Case has an easy open latch, a rubber liner for extra protection that doubles as an o-ring seal, lanyard and stainless stell hardware. This Pelican 1040 Accessories Case with Liner is backed by the Pelican unconditional lifetime guarantee of excellence.