Military-Standard Waterproof Case 6 (W/ Cubed Foam) from SKB is constructed of ultra high-strength polypropylene copolymer resin and sealed against dust and water. The hard outer shell is impact-resistant and features a rubber cushion grip handle for easy transport. The cubed foam interior provides full protection for your equipment at all times. An automatic ambient pressure equalization valve self-adjusts based on your altitude. The case is resistant to UV, solvents, corrosion, and fungus, making it the best way to ensure maximum protection for your equipment at all times.