Parkit360 is a very unique powered electric trailer dolly. There are 3 models to chose from… the P360s, P360M, P360L. They fit a range of trailers from light as 1500lbs up to 9800 lbs. For use on all trailers… RV trailers, Travel Trailers, Tent Trailers, Caravans, Utility Trailers, Cargo…