Has greater adsorption capacity: lifeless scum is about 40 times its own weight, does not absorb any water; a good helper to reduce the formation of scum in the hot tub or swimming pool Just float it 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 When the sponge is clogged with dirt, just squeeze out the oil, or when it gets dirty, just clean with a detergent and rinse thoroughly Our scum sponge can not only be used to clean your hot tub or swimming pool, but also a good cleaning tool when you take a bath Storage and maintenance methods: 1. Keep the sponge clean, the sponge with sebum dirt will become dirty and hard. At this time, please clean the sponge. (Use a neutral detergent, wash under the above pressure, and dry in a cool place. When the puff loses its elasticity, it will not recover its soft state after cleaning. Please replace the sponge. 2. The sponge itself is white, and an oxidation reaction will occur when the white object is exposed for a long time. Therefore, yellowing and discoloration are normal phenomena. 3. The usual storage is to place it in a cool place and with a black bag. Colour:White Material:sponge Package Contents: 20 x Oil-absorbing sponge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.