SPI Waterproof Cases are molded with a virtually-indestructible fiberglass reinforced ABS resin; a silicone O-ring creates a watertight seal (tested to depths beyond 100 feet without leaking). These cases will protect your valuable equipment from incredible abuse in extremely harsh environments—they are waterproof, crushproof, and buoyant. Features include padlock provisions and stainless steel pins used in the hinges and latches. Models are available with or without foam. Clear lid and base are available in some sizes, as are additional color options.