This SKB iSeries Transit Case is a wheeled hard case with custom-cut foam to fit the Canon 20-50mm Flex Zoom Wide-Angle or 45-135mm Telephoto Lens Kit. Made from high-strength polypropylene copolymer resin, the case is resistant to corrosion, impact damage, UV, solvents, and fungus. It features a gasket-sealed, submersible, dustproof, and waterproof design (MIL-STD 810G). Other features include a molded-in hinge, padlock loops, patented trigger release latches, a snap-down rubber overmolded cushion grip handle, and an automatic ambient pressure equalization valve (MIL-STD 810G).