The Pelican 1040 Micro Case provides the ultimate protection for the things that matter in your life. From small sensitive components to smartphones protect your gear from the elements in a crushproof watertight & dustproof Micro Case from Pelican. It s waterproof crush proof and dust proof. The built-in Automatic Pressure Equalization Valve balances interior pressure and keeps water out. A protective rubber liner doubles as an O-ring seal.