The black Vulcan Series VU350514W Utility Case with Wheels from Odyssey Innovative Designs is a polymer plastic injection-molded case that is watertight, dustproof, and impact-resistant. It is made of a high-strength polymer resin which provides good protection for your gear. The case features corner wheels for convenient transport and a soft convoluted dual egg foam-lined interior. The bottom section is layered with diced pluck foam that can easily be adjusted to fit additional gear and accessories. It also features a comfortable carrying handle, pressure-release valve, and padlock loops.