Description:1. 7 Way To 4 Way Trailer Plug adapter can be used by most trailers, easily convert 7 Way round connector to 4 Way flat connector2. Strong and durable-plug with copper pin contacts, better electrical conductivity. With a strong nylon housing, PA66 is highly waterproof, wear-resistant, fireproof and cold-resistant, and extremely durable3. Completely dustproof design--With dust covers on the plug, it can prevent dust from infecting the plug.4. Simple to use-Plug and play, no need to rewire, very convenient and time-saving, suitable for everyone5. Wide Application-Widely used in trailers, RVs, cars, boats, etc. Features:With this online tool, effortlessly convert 7 way connect to 4 way plug, Trailer plug adapter provides 4 way plug which are suitable for most trailers, in this solving way, make sure that you describe your problem at any time change the adapter. It is made of high-quality copper core and PA66 nylon housing, which greatly improves the electrical conductivity, at the same time, it can achieve waterproof, dustproof, wear-resistant. It can be used on rainy days without any problems. Plug and play, no wiring, very convenient, easy to tow the trailer. Package Include: 1x7 Way to 4 Way Trailer Plug Adapter