The Astro Systems DMCASE 6.0" Hard Shell Carrying Case (Black) is an unbreakable, watertight, airtight, dustproof, hard case designed to carry an Astro systems 6.0" portable monitor. It is made of Ultra-High Impact structural copolymer that makes it extremely strong and durable. It has a 0.25" (6.4mm) neoprene o-ring, ABS latches that seal perfectly and includes an automatic purge valve for quick equalization after changes in atmospheric pressure.