Do it Assorted Black Bonnet Faucet Washer (4 Ct.) is designed to effectively stop bonnet leaks in faucets and valves, ensuring a reliable and long-lasting seal. Made from cloth inserted rubber, these washers provide durability and a secure fit. This set contains two each of 1/4" regular and 3/8" regular sizes, making it versatile for various repair needs. I for anyone looking to maintain or fix faucets with ease, these washers are a practical addition to your toolkit. Model Number: