SOFT MATERIAL - Made From Durable Elastic And Ultrafine Nylon Mesh, These Pool Skimmer Socks Acts As a Net To Attract And Trap Leaves, Grass, Hair, Scum, Oil, Pine Needles, Pollen, Bugs, And Other Debris, Preventing Them From Clogging Your Pool's Filtration System. COMPATIBLE: Works with Most Pool Skimmer Baskets on the Market. Made to Work Effortlessly with Most Brands Such as Hayward, Pentair & Swimquip. Buy Once and Never Look Back. QUICK AND EASY TO USE: High Quality Elastic Provides Secure Grip. Install in Seconds. Makes It Easy To Remove Dirt from Your Pool Baskets. Wash & Reuse or Simply Replace. LOWER YOUR MAINTENANCE COST - Protect Your Expensive Filtration System And Keep Your Pool Sparkling Clean With Our High Quality, Low Cost Swimming Pool Skimmer Basket Socks WARM NOTICE - You Should Replace Or Clean The Socks Every 4 to 8 Weeks In Case Of It Getting Too Dirty To Slow Down The Water Flow; Do Not Use While Dissolving A Chlorine Tablet In Your Basket.Specifications: Size: 13 x 22 cm. Material: nylon. Color: White. Quantity: 20 packs