color:white Material: Strong Elastic Superfine Nylon Mesh Size: 22 X 13cm/8.66 X 5.12" weight:147g216g358g710g Including: 20pcs/30pcs/50pcs/100pcs Feature: The thick ultra-fine nylon fabric is durable, excellent in quality, and flexible. It can be washed and reused as needed. The ultra-fine mesh can capture all small particles, keep the pool filter clean, promote swimming pool water circulation, and make your pool filter run more efficiently. It is recommended to change the pool socks every 4 to 8 weeks. Simple swimming pool Skimmer socks make swimming pool maintenance easy, and protect the pump impeller and the shaft seal of the swimming pool, so your filter system will have a longer service life. Easy to install, very flexible, suitable for most types of pool pumps, pool baskets or filter baskets. Simply stretch them onto the basket, put the basket back, and change the filter socks regularly. No expensive repairs are required, which helps your pool maintenance. They can catch oil, hair, bugs, grass, pollen, leaves, pine needles and any other small debris. A simple and effective way to protect your pool filter. Ideal swimming pool accessories, wear filter socks, enjoy finer filtration and cleaner swimming pool. Pool socks collect all debris before they become clogged, so your filter system will last longer! Very suitable for ground and ground pools.