Leak prevention and winter protection: Pool nozzle plugs are shielded by a builtin rubber layer that provides double protection to prevent water leakage. For winter safety, wrap the drain with tape to guard against freeze damage. Wide compatibility and durability: Suitable for both large and small pools, and made from quality material to ensure durability and efficiency. Oshaped ring design for longterm protection: The unique Oshaped ring design delivers reliable leak protection, helping maintain the purity of pool water for a safe swimming environment. Maintenance ready: Includes two plugs to meet regular pool maintenance and replacement needs, ensuring ongoing functionality. Practical use scenarios: Winter protection in cold climates: install and wrap the drain with tape to prevent freeze damage. Routine maintenance and replacement: rely on the included two plugs for regular maintenance tasks. Versatile across pool sizes: suitable for both large and small pools, fitting a variety of pool setups.