Hopkins 47565 Round Adapter As the number one brand in towing electrical products, Hopkins Towing Solutions has provided consumers with innovation, durability, and performance for over twenty years. Hopkins' Plug-In Simple Adapters take the guesswork out of vehicle-to-trailer wiring. Pre-wired adapters allow the consumer to create a custom Plug-In Simple wiring system appropriate for any towing situation. Features Multi-Tow adapters provide two towing options from one vehicle-end connector creating a true customized wiring system Universal pin can be switched to auxiliary/electric brake Center pin auxiliary 7 Way RV blade to both 6 round and 4 Wire flat Take the guesswork and frustration out of vehicle to trailer wiring USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.