Size: 14 Inch, 15 Inch, 16 Inch, 17 InchMaterial: High Quality PolyesterStep 1: Find Your Tire . It's Written On Your Tire SideStep 2: Calate Your Tire Diameter If Your Tire Is Written With P225/65r17, A=225 B=65 C=17.Tire Diameter=A*B/500+C*2.54 =225*65/500+17*2.54 =72.43cmAccording To The Sizing Guide, 14" Spare Tire Cover Is The Size That Fits Your Spare Tire.Product performance:The silver-coated sunshade fabric can not only prevent dust and watersping, but also prevent sun and corrosion, greatly improve the appearance of the vehicle andkeep the spare tire clean.Applicable scenario:The universal model is applicable to cars,ilers, SUVs, trucks and manyvehicles.Acceory structure:With nylon rope and buckle, it can be adjusted in size, easy to install anddisaemble, without tools.Washing instructions:It is recommended to wipe and clean with wet cloth.Note:Please Allow 1~2 Cm Deviation Because Of Hand- And Sewing.