These are swimming pool filters made of . They are wear-resistant, safe and durable, and prevent hair and from entering the sewer. The simple design and details are very convenient to use. You can easily replace them. Features - Color: White. - Material: Cotton. - Size: About 21x11.5x0.2 cm / 4.52x5.12x0.07 inch. - These premium quality cotton pool basket filter socks are made from ultrafine mesh and durable elastic, which can be reused many times. - With our filter socks, the only thing you need to do is just replace the used socks regularly. No need to clean up the garbage by hand. - The pool skimmer socks can trap leaves, grass, hair, , and other debris which will your swimming pool filtration system. - Good elasticity to stretch easily and enough to cover the skimmer basket, fit for swimming pools. - Our pool filter socks can help to protect the pump impeller and shaft seal from damaged or blocked, extend the life of the pool filter system. Package list: 5 Skimmer Socks