Adapts 7-way connection to 6 round and 4/5 pin connections. Sealed plugs to keep road debris from corroding connections. One adapter for all your trailering needs. Made from strong Nylon 6. Winged grip for easy installation and removal Plugs into 7-way Spade type terminals found on most vehicles today and adapts to 6 round pin and 4/5 pin Trailer connections.