All Marinco cordsets are made of the highest quality marine-grade constructionWatertight molded plug and connector for safety and durabilityHeavy duty, super flexible marine-grade cable (50 amp 6 gauge)All models include a standard threaded ring for hook-up to ordinary threaded inletsCorrosion resistant, nickel plated contactsPower Indicator Light: Boatside connector features a molded-in LED light. When it glows red, you know you have power to the boat.Contour Grip with Thumbnail Locator: Both plug and connector ends are molded to fit the contour of your hand. When the thumbprint is in the 12 oclock position, the blades line up for easy connection.The Marinco Easy Lock system: Quickly locks the cord set to the inlet in just 1/8 of a turn. The exclusive locking tabs engage slots built into all Marinco inlets.