Filter System Protection: Skimmer socks catch and remove smaller debris such as leaves, grass, bugs, oil, hair, pollen and other floating debris, before they reach and clog the pump and drain. your pool filter, thus extending the life of your pool filter and filtration system. Easy to Install: The skimmer socks are made of ultra-fine nylon mesh, have good elasticity, can be reused many times, you can easily put them on the basket and take them off, suitable for most kinds of swimming pool pumps, filter baskets, baskets pool filters, skimmers, etc. Universal Fit: Our pool filter socks work with in-ground and above-ground swimming pools, hot tubs and spas, etc. And they should replace or clean the socks every 4-6 weeks, when they are too dirty to allow water to drain. Note: Please do not use the product, while dissolving a chlorine tablet in the basket of your pool skimmer. Otherwise, the skimmer sock will be seriously eroded. Material: strong elastic superfine nylon mesh Product color: white Product size: tiled 22 *13cm Packing List: Our 20pcs pool skimmer socks are delivered. Note: The data is manual measurement, please allow 1-93cm error, due to light and screen differences, there will be a certain color difference, the specific received in kind prevail.