Built for tough and versatile large equipment protection, the Pelican 0550 Transport Case is designed to offer more than 20,000 cubic inches of usable storage space. It sports two integrated automatic pressure equalization valves that keep moisture out and prevent vacuum lock ensuring the case is easier to open at any altitude. The lid is equipped with special locking hinges (lid-stays) to ensure that the case stays securely open for easier access. Optional available features include heavy duty caster wheels (each rated to handle 250 pounds) and detachable pallet risers for easy forklift transport. Like all Pelican Protector Cases, the 0550 Transport Case's open cell-core wall, polymer construction protects sensitive equipment from severe conditions. Built to fit six cases to an extra-large, military-style 463L Master Pallet (88" x 108"), the case features an extremely robust "honey-comb" style, reinforced lid that provides extra support for stacking multiple cases. For more information call (800) 473-5422 or vidit www.Pelican.com.