KFFKFF Marine Trailer Trolley, Carrying Capacity of 420lbs, Constructed from Carbon Steel with Variable Length, Equipped with 15.7 in Air-Filled Tires and Anti-Slip Support Stand

Overall it does its job really well. Im probably at the top end of its carrying weight, the sailing dinghy is 400 lbs. So although I launch it using the handle, I attached a ball hitch to my golf cart and move it from the boat storage area to the lakeside with my golf cart. Ive been using it for about 3 months and typically go out twice a week, no signs of problems. Just like anything left out in the open, I have it covered with a tarp and check the bearings etc. Pros: Solid construction, tires run freely and hold the weight, easy to build (and modify), rubber pads keep boat secure on trips without need of straps (boat is heavy though), great price. Cons: Not that much wrong, slight hassle launching it because the tires (full of air) grip the bottom of the boat (if the launcher was heavier it would sink more). Like one other reviewer, I put a hitch on it.