Oil Absorbing Sponge: Sea Turtle Foam Sponge for Hot Tubs and Spas, Swimming Pool Absorbs Oil, Sludge, Dirt and Scum Cleaning Oil Absorbent Sponge: A scum that absorbs approximately 40 times its own weight and does not absorb water. Great for cleaning hot tubs or swimming pools. READY TO USE: Do not throw away your sponge. When the sponge becomes saturated, simply squeeze out the oil, rinse the sponge, and use it again. Your pool will benefit with every use of the cleaning sponge. Strong Oil Absorption: Keeps the oil inside the sponge. Once the oil is absorbed, it wont be released back into your pool or bathtub. Great for collecting oil, scum, slime, dirt, lotion, pollen, and debris from swimming pools, bathtubs, spa tubs; also useful for cleaning dishes, woks, stoves, dry sinks, faucets, and more. Note: The sponge itself is white, and the white material may oxidize when exposed for long periods. Therefore, yellowing and discoloration are normal. The recommended storage method is to keep in a cool place. Weight: 1 pc - 5g Size: 11.5cm / 4.53in Quantity: 4 pcs per bag, 10 pcs per bag