Leviton's Dustguard line of industrial grade plugs and connectors feature rugged construction that resists impact, sunlight, chemicals and rough use. All contacts are solid onepiece construction for superior conductivity. They are engineered to IP44 Splash proof and dust-tight standards. The ergonomic, fluted-body design with radial gripping edge is ideal for gripping and pulling. The unique cord clamp accepts a wide range of cord sizes, providing a secure grip without damaging the cord. And, they are backed by a limited lifetime warranty.