This Lined Ribbed Tire SET (2) fits Grasshopper Mower 13 x 6.5 x 6. Tire liner is a permanent, self-healing polyurethane rubber that is securely adhered to the inside of the tire casing. Tireliner heals over cuts, punctures and penetrating objects and will prevent tires from going flat if punctured or cut by objects up to 3/8" in diameter. Tireliner offers sidewall protection as well as protection for the tread face area of the tire. Replaces Grasshopper #482355 made to OEM specs.