Pelican 1150 Small Protector Watertight Case with Pick N Pluck Foam A 3 Piece foam set that consists of one "egg crate" foam upper section, one Pick 'N Pluck foam section and one 1" thick blank bottom foam section is included. Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof case Made of Ultra High Impact structural copolymer that makes it extremely strong and durable Built-in purge valve for changes in altitude or temperature NATO codified and tested to IP-67 (Ingress Protection).