Spare Tire Cover PVC Leather WaterProof Dust-proof Universal Spare Wheel Tire Cover White Star Fit for Jeep,Trailer, RV, SUV and Many Vehicle(15" for diameter 27"-29")

?Size 14 inch fits for tire diameter 60~69cm ?Size 15 inch fits for tire diameter 70~75cm ?Size 16 inch fits for tire diameter 76~79cm ?Size 17 inch fits for tire diameter 80~83cm How to calculate your tire' diameter? If your tire is written with P215/60R16, A=215 B=60 C=16. Tire diameter=A*B/500+C*2.54 =215*60/500+16*2.54 =66.44cm You need to buy the 14 inch one. Click "Add to Cart", Get our spare tire cover to your home. Say goodbye to uncertain bad weather from now on! ?Money Back Guarantee: No risk, unconditionally new replacement or refund for any quality problem. Life-time technical support. Please feel free to contact us in time. Item Description: Fitment: all cars - universal fits for 15"-17" tire diameter Package: 1Pcs Spare Tire Cover, 1Pcs Storage Bag Material: PVC Leather(Waterproof&Dustproof&Anti-UV).