Two 21 inch Bigfoot tires. Perfect for a Cat dolly. You no longer need to be built like the Hulk or recruit help to push your boat ashore. Much easier than the plastic wheels. $175 I will pay for shipping within the U.S. 954-695-8730 zojoe@earthlink.nethttp://www.villagephotos.com/pubbrowse.asp?selected=288706