Quantity: One Set (4 Caps). Size: Caps:0.5 in. long (12mm). Wrench:2 inches long (50mm). Colors: Silver. Material: Stainless Steel Alloy. Type: Car Tire Valve Stem Caps. Unscrew the valve cap off the original car, clockwise twist on the product, tighten the valve cap with the small wrench. Valve cap with leak-proof rubber ring to prevent air leak and sandy soil get into tires, After tighten the valve cap with the special wrench, Nobody can unscrew the valve caps without tool, So the valve covers won't be stolen easily, while you no longer have to worry about being deflated prank.
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