Hardly used heavy duty trailer dolly, 1 year old. The Trailer Valet XL is the toughest, most compact trailer dolly on the market today. It shares the same great features as it's little brother, but also comes with a few upgrades. The XL moves most trailers up to 10,000 lbs. just by simply using our quick attach crank handle or an 18V drill. It features dual 9" tires that can withstand up to 500 lbs. per tire, and positraction technology for making tight turns. The automatic brake engages when the handle is released for superior safety. Making it ideal for boat, RV, construction, farm, horse, RTV, and flat bed trailers. These are $1000 new