DKIIGAME 30"-31" Spare Tire Cover,Wheel Protectors,Dog Cat Paw Print,Weatherproof Vinyl Leather,for Wrangler Sahara,Hummer H3,Toyota FJ

Description

Size:30 -31" The arithmetic to know the diameter of car tire: For example,your car tire is P235/75R15,A=235 B=75 C=15 Your tire diameter =A*B/500+C*2.54 =235*75/500+15*2.54 =73.5cm