C.E. Smith Spare Tire Covers protect your boat trailer's spare tire from harsh sunlight, road grime, and foul weather. Each cover is constructed of ultra-tough black vinyl material with a corded edge and an elastic closure for a snug, secure fit. AVAILABLE IN THREE SIZES:* 13" Tire Cover - 25" dia. x 7.5"D* 14" Tire Cover - 27" dia. x 8.5"D* 15" Tire Cover - 29" dia. x 9.5"D Corded edge, elastic closure for a snug fit Available in 13"", 14"", & 15"" tire sizes | C. E. Smith Spare Tire Cover, 13" in Black