1. Material: brass 2. Use: anti-dust, protect tyres 3. Built-in rubber sealing ring, several times the function of air leakage prevention, double layer protection, tightly without air leakage 4. Mainly made of high quality alloy material, with a strong sense of metal texture and anti-corrosion and oxidation resistance. 5. Universal, anti-air leakage, anti-theft, effective protection of tyres driving safety 6. Size: 11x14mm
