1/2/4PCS 13-19inch 19-23inch Tire Cover Case Car Spare Tire Cover Storage Bags Carry Tote Polyester Tire Wheel caps Car AccessoriesFeature:-Dustproof, waterproof and snowproof.-To protect automobile tires, to prevent aging.-Light weight, easy to store and easy to use.-The elastic is adjusted, and one pull completes the tight seam.Specification:-Condition: 100%Brand New-Product Name: Car Tire Cover-Material: Oxford Cloth-Color: Black + Silver-Dimensions(Diameter*Height): small size :63*37cm /large size 80x47cm-Type: Tire Cover-Placement On Vehicle: Front,Rear-Quantity:1/2/4pcs/set -Fitment:For 13-19 16-20 inch Tire,Includes Car/ SUV / Mini Car Etc.(Please confirm the size of the tire before buying.)Please double check below before you place the order.If your car tyre R value is less than R16 , you can choose Small size directly.If your car tyre R value is R16,Please check below:Commonly used specificationSTyre diameter less than 66cmL: Tyre diameter less than 80cmCalculation method for Tyre diameter:E.g: Tire specifications 195/55R15Tire Diameter conversion method: Diameter(cm)=W*AR/500+R*2.54Formula: Diameter= W*AR/500 + 2.54*R= 195*55/500+2.54*15 =59.55According to the calculation, Small size is suitable.Package Included(as picture):1/2/4 X Spare Tire Cover Case