Features: Material: waterproof high-grade polyester Easy to clean: wipe the stains with water or a damp cloth. Suitable for most vehicles: trailers, SUVs, trucks, and many vehicles Design: The Camper Trailer Campfire wheel cover has elastic straps, which can be easily put on and taken off in a few minutes It will be a nice gift for you to give your friends or your family who like traveling. SIZE Information: 12" fits for tire Diameter 55-60cm/24 Inch 13" fits for tire Diameter 61-66cm/26 Inch 14" fits for tire Diameter 67-69cm/28 Inch 15" fits for tire Diameter 70-75cm/30 Inch 16" fits for tire Diameter 76-79cm/32 Inch 17" fits for tire Diameter 80-83cm/34 Inch 18" fits for tire Diameter 84-92cm/36 Inch Spare Tire Cover Diameter Calculation Guide Step 1: Find Your Tire Parameter. It's Written On Your Tire Side Step 2: Calculate 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 =72.43cm According To The Sizing Guide, 15" Spare Tire Cover Is The Size That Fits Your Spare Tire. Material: Made of high-quality waterproof polyester fiber material which is dustproof, waterproof, sun-proof and anti-corrosion, keep the shape at any temperature.Its construction ensures long-lasting use. Size: Please make sure your spare wheel diameter before buying. Size12 inch For Tire's diameter 24''. Size13 inch For Tire's diameter 26''. Size 14 inch For Tire's diameter 28''. Size 15 inch For Tire's diameter 30". Size16 inch For Tire's diameter 32''. Size 17 inch For Tire's diameter 34''. Size 18 inch For Tire's diameter 36''. You can Choose best size for your spare tire. Easy To Install And Remove: No tools required. Drawstring adjustable for tightness. Sliding spare tire cover is easy to install and remove without any tools. Using a drawstring buckle is stronger and more secure than relying solely on the elastic sleeve on the tire. Unique Design: Camper Gifts design make your spare tire cover unique, with a variety of patterns to choose from. Elasticized band design for a secure fit. The cord keeps the tire cover stay on the wheel even on windy days. Easy to install and remove. Application: This Camping Camper Gifts Tire Covers Especially Fit for Trailer, Suv, Truck And Many Vehicles,Strongly Improves Your Vehicle Appearance And Extend Their Service Life. Effectively Protect Your Spare Tire In Rain, Snow, Wind, Dust, Sun And Any Bad Weather When Your Vehicles In Garage Or Outside.