The Pelican 1040 Micro Case in clear yellow is a water-resistant, crush, and dustproof case made to carry small valuable items. It is made of copolymer, which makes it strong and durable. It has a rubber liner for extra protection, which doubles as an O-ring seal. An Automatic Pressure Equalization Valve balances interior pressure and keeps water out. Included is a carabiner that can be attached to a larger bag or luggage cart.