Good quality spare tire cover, universal fitting tire cover for 15 inch (70-74cm) diameter tires This spare tire cover is easy to install, with absolutely no tools required. It takes about a few minutes to install. This wheel tire cover is made of high quality durable heavy duty synthetic leather. Greatly Enhances the Vehicle Appearance, Fix Perfectly in Your Car. The tire cover is sewn with thick elastic in the mouth of the cover so that the cover fits snugly and perfectly to your spare wheel. More durable and weatherproof waterproof outside, no exposed thread means your tire will last.This wheel cover can protect your wheel tire well The arithmetic to know your tire of diameter: For example, your tire is P215 / 60R16, A = 215 B = 60 C = 16 Your tire diameter = A * B / 500 + C * 2.54 = 215 * 60/500 + 16 * 2.54 = 66.44cm, you need to buy the 14 inch one. SIZE XS (13 INCH) FIT FOR: diameter 56 ~ 60cm SIZE S (14 INCH) FIT FOR: diameter 65 ~ 69cm SIZE M (15 INCH) FIT FOR: diameter 70 ~ 74cm SIZE L (16 INCH) FIT FOR: diameter 75 ~ 80cm SIZE XL (17 INCH) FIT FOR: diameter 81 ~ 84cm Package content: 1 x car spare wheel cover Note: Please confirm the desired size before buying!