Package Contents: 30 pool skimmer socks and 1 storage bag to store and pull out socks easily. Tip: The skimmer basket is not included in the product package. Durable Material: The pool filter socks are made of high-stretch nylon, which is very elastic and fits all baskets of various sizes and shapes, sturdy and durable. Warm reminder: Chlorine tablets cannot be used directly in skimming socks, high concentrations of chlorine will damage the material. Cleaning Pools: Pool nets for cleaning above-ground and in-ground pool skimmer baskets. The pool skimmer basket socks are designed as mesh to catch dirt, grass, leaves, hair, grease, bugs and debris, preventing all sticky stuff from clogging the filter system, saving maintenance costs Easy to use: The skimmer socks have good elasticity and can be easily placed on the basket. It can be washed and reused, and it can be replaced with a new one within 2-8 weeks.