Reduces Pool Maintenance Time: Pool socks catch small things that would normally pass through the skimmer and into your pool filter.You don't need to disassemble the filter housing to wash the filters. Mesh Filter Socks: Fine dirt particles settle on the bottom of the pool and are impossible to vacuum up, because they are too fine and settle again.These filter socks are a valuable time saver and collect all the silt and dirt Traps all hair and debris: Dog friends come to jump and swim regularly.With these socks, 90% of hair is caught and pulled out quickly.It not only removed virtually all hair, but also all other small surface debris such as shrubs and insects that do not get caught when using the portable net. IDEAL POOL ACCESSORIES: The pool filter sock is a highly effective pre-filter that is frustratingly continually leaking through the filter and settling into the pool.It is also used in place of the debris net on your pool vacuum to catch smaller particles. Durable and Reusable: Clean the pool skimmer sock from leaves and dirt, wash it and reuse it until it wears out.So the package lasts a long time.These skimmer socks do an incredible job of keeping the pool clean by catching small things that pass through the basket.