Product description:4inch Trailer pintle hook50mm&2inch ball is available50x50 solid steelblack powder surfaceTrailer Hitch:A dependable connection to your lifestyleDo not exceed the lowest Working Load Limit of any component (ex: vehicle, hitch receiver, shackle, etc)Wherever your work or play takes you：trailer hitches, and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.Attention1. Do not attempt to modify the system.2. Always inspect entire tow system, trailer, lights and brake system before every towing trip.3. Do not max out the towing weight, always keep 25% room for uphill and downhill ride. 4. If trailer is short, avoid backing off. Short trailer is easy to jackknife. 5. Lock your tow hitch outdoor. 6. Do not tow over or close to weight rating.