The Pelican™ 1550 case is unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof just like all Pelican™ Cases. It is made of Ultra High Impact structural copolymer that makes it extremely strong and durable. Its exclusive 1/4" (6.4 mm) neoprene o-ring and ABS latches seal perfectly and includes an automatic purge valve for quick equalization after changes in atmospheric pressure.
The Pelican™ 1550 Case is one of the more popular cases within the Pelican™ medium case category. It's the last largest size case without wheels. So if you're for the largest case without the wheels and pull handle then the Pelican™ 1550 case will be the one you want.