Designed to either be moved manually or stacked on pallets, the 1730 Transport Case, manufactured by Pelican Products Inc., features four extra-deep base-to-lid, locking cleats that ensure maximum stacking stability. For easy manual transport, the case comes standard with several mobile-friendly features that include two double-wide handles and rugged polyurethane wheels with stainless steel ball bearings and nylon hubs for extended towing durability. With nearly 10,000 cubic inches of usable storage space and an infinite number of internal storage possibilities, the 1730 features an open cell-core wall and polymer construction. Additional standard features include a lid equipped with a polymer o-ring for a dust and water tight seal and dual action latches that have been tested to withstand nearly 400 pounds (but open with a light pull). The 1730 features an integrated automatic pressure equalization valve that keeps moisture out and prevents vacuum lock so the case is easy to open at any altitude. The 1730 Transport Case is also available with a manual pressure regulation valve and a humidity indicator for moisture regulation. This feature is optional which makes it perfect for storing weapons or anything else that requires strict atmospheric conditions.