Nylon Mesh Design: These pool skimmer socks are made of durable elastic superfine nylon mesh, which can be used as a net cover to attract and capture leaves, grass, hair, moss , oil, pine needles, pollen, insects and other residue and prevent them from clogging the pool filtration system. Convenient to use: Pool socks protect the pump impeller and shaft seal from damage/clogging, thus extending the life of the pool filter/filter system. Perfect for cleaning: The pool skimmer socks make it easy to clean the pool skimmer without causing confusion. Suitable Size: Our pool skimmer basket socks fit almost any shape pool skimmer basket. Little tip: If the socks are dirty, please use a garden hose to r clean and reuse them, or you can throw them away and use a new one. Replace pool skimmer socks every 4-8 weeks.