Features: Premium hottub Scum Absorber efficiently removes oil residues and floating debris from water surfaces, maintaining clean water conditions in spas and pools with rapid absorption capabilities. Use polyester cotton blend and friendly acrylic fibers, this nontoxic filtration sponge withstands repeated use without deteriorating or contaminating water quality. Great for homeowner, pool maintenance professional, and spas operators searching efficient surfaces scum elimination solution for water environment. Perfectly suited to residential hottubs, commercial swimming pool, and wellness center hottubs where oil film and particulate buildups require frequent intervention. Multiuse hottub oil Absorbing sponge works synergistically with existing filtrations systems, enhancing overall water clear while reducing manual skimming effort. Specifications: Component: Polyester, Cotton, Acrylic Fibers Product Size: Approx. 01 size 25x21cm/9.84x8.26inch, 02 size 37x32cm/14.56x12.59inch Size: 01/02 Type: 01/02/03/04 Package Includes: Type 01: 1PC Scum Absorbing Sponge Type 02: 2PCS Scum Absorbing Sponge Type 03: 3PCS Scum Absorbing Sponge Type 04: 4PCS Scum Absorbing Sponge note: Please allow 0-1cm error due to manual measurement. Due to difference between different monitors, the picture may not reflect the actual color the item.