You will get: there are 2 pieces of black 7 pin round to 4 pin 5 pin flat blade trailer in the package, sufficient to meet your use and replace needs, and you can share another piece with your friend and family members Easy to use: these 7 pin trailer plug allow you to plug-and-play simply, you don't need to cut or splice, setup relaxingly, which don't require wire nor splice, very convenient, save you much time and energy Reliable material: these rv boat adapters come with quality metal and silicone, which is stable in structure, not easy to fade, deform or break, solid and sturdy enough, serviceable and ready to serve you for a long time Connect tightly: these wiring plug adapters can fix your plugs nicely which makes it not easy to peel off, and allowing you to keep your trailers, campers and more, and making you work smoothly and efficiently, providing you with good use experience Wide applications: these weatherproof flat trailers are suitable for most of the OEM 7 way plugs, which can be well applied for towing rv, carts, trailers, pickups, trucks, ships, motorcycles, bicycle frame, and other cars which come with American sockets