High Quality Materials - 30 Pieces Swimming Pool Filter Sock for swimming pools are made of ultra-thin and dense nylon fabric. It has good elasticity and is easy to stretch, enough to cover the skimmer basket. Pool skimmer socks are strong, durable, elastic and reusable.Perfect Filtration - Elastic fabric fits snugly over your basket so it won't come loose. You just need to change the used bag regularly. Use our pool to be cleaner. Easy Installation: The skimmer net facilitates and cleans the skimmer pool baskets. What's more, you can simply clean the sock with a garden hose if it gets dirty, to make life more comfortable. Extend the life of your pool filter system: Pool skimmer socks protect the impeller from pump and shaft seal from damage and clogging, thus extending the life of your swimming pool filter and filtration system.Wide Application: Pool Skimmer Socks are suitable for all types of pool filters, baskets or skimmers. The filter socks like a net filter waste such as leaves, grass, hair, moss, etc., keep your swimming pool clean and save costs Note: The data are all measurements manual, please allow 1 - 3cm error, due to the difference in light and display, there will be some color difference, depending on the physical object received.