Heavy Duty Spare Tire Cover. 27440. Strong black vinyl with corded edge and elastic closure for a snug fit. Protects tires or spares from sun and foul weather for years of use. Protects tires from sun and foul weather, Strong black vinyl material, Corded edge and elastic closure.. Tire Size: 15". Diameter:29". Depth:9-1/2"WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.