Oil Absorbing Sponge: Sea Turtle Foam Sponge for Hot Tubs and Spas, Swimming Pool Absorbs Oil, Sludge, Dirt and Scum CleaningOil Absorbent Sponge: A lifeless scum that weighs approximately 40 times its own weight and does not absorb water. Great for cleaning hot tubs or swimming pools.READY TO USE: Don't throw away your sponge When the starfish gets stuck in the mud, simply squeeze out the oil, rinse the sponge, and use it again. Your pool will be better with every use of the cleaning spongeStrong Oil Absorption: Keeps the oil inside the sponge, once the oil is absorbed, it won't be consumed in your pool or bathtub.Great for collecting oil, scum, slime, dirt, lotion, pollen and trash. Bugs from swimming pools, bathtubs, spa tubs; cleaning dishes, woks, stoves, dry sinks, faucets and more.Note: The sponge itself is white, and the white object will oxidize when exposed to it for a long time. Therefore, yellowing and discoloration is normal. The usual preservation method is to store in a cool place.Weight: 1pcs5gSize: 11.5cm/4.53inQuantity: 4pcs1 bag, 10pcs1 bag