• 30 pieces of silicone gaskets for universal 1/2 inch faucets • Made of high-quality silicone, new material, not recycled, wear-resistant, non-toxic, and odorless • Airtight leak-proof seal, corrosion-resistant, anti-aging, withstands high and low temperatures, acids, and alkalis • Easy to install: place the sealing ring on the faucet thread and screw it onto the water pipe • Suitable for hot and cold water, with a temperature range from 0 to 100 °C • Dimensions: 25 mm upper diameter, 15 mm joint diameter, 13 mm height • Compatible with common 1/2 inch faucet valves • The tapered design makes adjustment easier and improves the sealing effect • Do not slip or deform under pressure, effectively prevent water leaks • Suitable for household use in kitchen faucets, bathroom faucets, and other plumbing systems