Sold in lots of 2 or 4. $25.00 each tire Flat Free Tires 4.10-3.50-4 10" Gross Load Rating 265 lb Flat Free Diamond Pattern Component: Steel/Polyurethane Color: Yellow/White Diameter Tire: 10" (25.4 cm) / Rim: 4.9" (12.44 cm) These are brand new tires that I just purchase as a lot of 8 tires as to be able to get them, I only needed 4 tires. The bearings are a standard size that can be changed to what ever size you need very easily, in most cases you can reuse your old bearings in these new tires as the bearings last along time and it's usually the tire going flat that is the issue and not the bearings. After I reused my old bearings from my generator and power washer, they work great, no more flat tires for me.