1. Structure and compatibility: The grenade design is fashionable and beautiful. Works with most cars, bikes, SUVs, trucks and other vehicles. 2. O-ring: food grade silicone rubber sealing ring, durable, heat-resistant, dust-proof, road, sundries, anti-leakage. 3. Easy installation: just screw on the tire valve stem. 4. Durable, anti-corrosion and anti-oxidation. Can be used even in weather conditions. Specification: Material: aluminum alloy Size: About 1.1*0.55 inches Quantity: 4 Package includes: 4* grenade aluminum alloy valve cap .
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