The weights came off of an 8N Ford tractor, will fit others with about a 12.4 or 13.6 X28 tire. The rim has to have 6 bolts holding it onto the center part.It requires 2 bolts to hold the wheel weight to the wheel. I have a couple more if you need a pair or more. This is for 1 weight. $60.00 each. They weigh about 250 pounds each.