<p><b>Why do we need a cover for our spare tire</b>s?</p><p>Because of the long-term rainwater corrosion, the spare tire is degummed and the spare tire is dirty.</p><p>Our spare tire cover is waterproof, dustproof, sun-proof and corrosion-resistant, which greatly improves the appearance of the vehicle and keeps the spare tire clean. Efficiently protect your spare tires and extend their service life.</p><p><br></p><p></p><p><b>Specification selection</b></p><p>Size 14 inch fits for tire diameter 60~69cm</p><p>Size 15 inch fits for tire diameter 70~75cm</p><p>Size 16 inch fits for tire diameter 76~79cm</p><p>Size 17 inch fits for tire diameter 80~83cm</p><p><br></p><p></p><p><b>How to calculate your tire's diameter?</b></p><p>If your tire is written with P225/65R17.</p><p>Tire diameter=22.5*0.65*2+17*2.54=72.43 cm</p><p>You need to buy the 15 inch one.</p><p><br></p><p></p><p><b>Item Description:</b></p><p>Size: 14-17 inch. Universal fits for many vehicles.</p><p>Package: 1Pcs Spare Tire Cover</p><p>Material: Polyester(Dust-proof& Waterproof & Sun Protection & Anticorrosion & Easy to Clean)</p>