The 12pcs Cartoon Duck Pools Grime Sponges are made of highly efficient absorbent sponge material that can absorb multiple times its weight in oil, slime, grime, and other types of scums. It helps eliminate muds, oil, dirt, hair that forms in swimming pools, hot tubs, jetted tubs, jacuzzis, and spas. By absorbing all the trash, no trash lines are formed on the tiles or walls of the pool, spa, hot tub, etc. This sponge can prolong filter life by collecting all scales, slimes, grimes, and oils out of the water, allowing the filter to run more efficiently. Just float the sponge in the skimmer of the swimming pool or spa, the sponge will absorb the dirt and grease in the swimming pool, making you happy and healthy in the water. Features: - Absorbs multiple times its weight in oil, slime, grime and other types of scums. - Helps eliminate the muds, oil, dirt, hair that forms in swimming pools, hot tubs, jetted tubs, jacuzzis and spas. - By absorbing all the trash, no trash lines are formed on the tiles or walls of the pool, spa, hot tub etc. - This sponge can prolong filter life by collecting all scales, slimes, grimes, and oils out of the water. And it allows the filter to run more efficiently. - Just float the sponge in the skimmer of the swimming pool or spa, the sponge will absorb the dirt and grease in the swimming pool, making you happy and healthy in the water. Specifications: Material: Sponge Package included: 12 x Oil Absorbing Scum Sponges Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.