very convenient and well worth buying chrome finish doesnt last long edited to add instructions for fixing a stuck ball nice 3 in one ball hitch great alternative to convert a ball five stars save time and headaches when changing hitch ball sizes this kit is excellent five stars very easily managed warning tow capacity is only 8000 lbs not the 10000lbs described corosion affects operation working fine and easy to change perfect for my occasional use works well but balls not necessarily interchangable between different posts loveit this will allow me to have the option of several size towballs available quickly not sure how much i would trust it great set of towing balls