This tough injection molded carrying case is designed with rigid reinforced walls to give maximum protection for even the most sensitive equipment. Optional extendable handle and 3 inch wheels make maneuvering easy with heavy loads. User configurable layered foam filling is also available. All cases include 3 metal spring loaded handles and stainless steel twist lock latches. The waterproof, dustproof silicone o-ring seal protects valuable contents including instrumentation, sales presentation packages, test equipment, photographic equipment and other delicate equipment. Durable, non-corroding ultra-high impact injection molded ABS plastic construction. Protects against salt air, water, sand and dust.