Nylon Mesh Design: These pool skimmer socks are made of durable, elastic, super fine nylon mesh that can be used as a net cover to cover leaves, grass, hair, foam, oil, pine needles, pollen, insects and to attract and trap other debris and prevent them from clogging the pool filter system. Practical application: The pool socks protect the pump impeller and the shaft seal from damage / clogging and thus extend the service life of the pool filter / filter system. Perfect for cleaning: the pool skimmer socks make cleaning the pool skimmer easier without causing confusion. Correct size: Our pool skimmer basket socks fit almost every shape of pool skimmer basket. Little tip: if the socks are dirty, please use a garden hose to clean and reuse them, or you can throw them away and use a new one. Replace the pool skimmer socks every 4-8 weeks.