Description 1. Outstanding sealing performance These rubber rings are specifically designed to prevent water system leakage and can provide a tight and reliable seal for your garden water pipe connections. They effectively solve the problems of dripping and water waste, ensuring that your irrigation system operates at the optimal efficiency. 2. High-quality materials and dimensions These black O-ring seals are made of high-quality NBR (nitrile rubber). Their outer diameter is 16 mm / 0.63 inches, and the diameter of the steel wire in the cross-section is 3 mm / 0.12 inches. This sturdy structure ensures excellent wear resistance in frequent gardening usage. 3. Multi-purpose compatibility These replacement O-ring seals are specially designed to be perfectly compatible standard quick-connect garden water pipe connectors and nozzles. Whether you are maintaining the lawn irrigation system or the car washing equipment, these gaskets can ensure a stable connection for various quick-release connectors. 4. Simple installation With these easy-to-use O-ring seals, you can simplify the maintenance process. Just slide them onto the connector head, and the installation process is fast and easy, saving you time and effort and restoring the connection to its original condition. 5. Bulk value kit This kit contains 50 replacement rings, providing a long-term solution for all your outdoor water connection needs. The sufficient supply ensures that you always have spare parts on hand to quickly repair in case of leakage. Package contents: 50 O-ring seals