1. Material: The pool skimmer socks are made of high-quality nylon cloth, 30 bags per pack, sufficient for long-term use. 2. Size: 22 x 13 cm / 8.66 x 5.11 inches (L x W), the socks have good elasticity, are easy to stretch, and fully cover the skimmer basket, suitable for swimming pools. 3. Extend the service life of the swimming pool filter system: Pool skimmer socks help protect the pump impeller and shaft seal from damage and blockage, helping to extend the life of the pool filter and filtration system. 4. Easy to use: Installation takes only a few seconds—simply slide the sock over the basket to start capturing debris from the water. 5. Effective pool cleaning: Pool skimmer socks capture leaves, grass, hair, oil, pine needles, pollen, insects, and other debris that can clog the pool filter system.