The Pelican 1550NF Case without Foam (Yellow) is an unbreakable, watertight, airtight, dustproof, chemical-resistant and corrosion-proof hard case used to carry any kind of equipment that needs to be protected from the elements. It is made of Ultra High Impact structural copolymer that makes it extremely strong and durable. It includes a 0.25" (6.4 mm) neoprene o-ring, easy-open double throw latches that seal perfectly, and an automatic pressure equalization valve for quick equalization after changes in atmospheric pressure. The case has a comfortable rubber over-molded handle.