The peli 1560 case 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 has a 025 64 mm neoprene o ring abs latches that seal perfectly and includes an automatic purge valve for quick equalization after changes in atmospheric pressure