Pool skimmer socks catch very small debris, insects, all people and dog hairs, etc., preventing them from clogging your pool's filtration system Universal fit: Fits most skimmer and pump baskets, making it ideal for in-ground and above-ground pools, ponds, hot tubs and spas. Easy to clean - Socks are easy to clean and reuse, leave the sock on the basket, rinse it and super easy to install! Money Saver: Using a pool sock protects the pump impeller and shaft seal from damage/clogging, extending the life of your pool filter Get rid of dog hair and small debris in your pool Pool skimmer socks catch very small debris, insects, all people and dog hairs, etc., preventing them from clogging your pool's filtration system Pre-filter for skimmer basket Adapted to the universe Highly expandable, fits most skimmer and pump baskets, making it ideal for in-ground and above-ground pools, ponds, hot tubs and spas. Protects your filtration system Using a pool skimmer sock protects the pump impeller and shaft seal from damage/clogging Specification Material: nylon fabric High elasticity and easy to attach The fabric is high quality and stretches very easily to fit the basket. Trap all debris Made from durable elastic and ultrafine nylon mesh can trap leaves, grass, hair, inanimate scum, oil, pine needles, pollen, insects and other debris