Aquatix Pro Oil Absorbing Sponge Premium 6pc Set, New Extra Large Model, 3 X Thicker, Absorber Balls Devours Scum, Slime, Grime, Lotion, Pollen & Bugs from Swimming Pools, Spas, Hot Tubs & Jacuzzis AMAZING RESULTS: Premium 6pc Pool Oil Absorbers purify water efficiently preventing scum lines and cloudy water. WIDE USAGE: These Scum Balls devours scum, sun tan oil, lotions, bugs and grime from Swimming Pools, Spas, Hot Tubs and Jacuzzis. PREMIUM QUALITY: You will get high quality Pool Oil Absorbing Sponges for extended use. SAFE & EFFICIENT: These Pool Sponges are completely chemical free and will result in improved filtration and Spa filter life. OUR GUARANTEE: If you are not happy for any reason, simply contact us for a complete refund - no questions asked. Full 1 year guarantee on all our products.