This professional fish tank filter cotton, made of cotton material, is safe and durable. Provide comprehensive filtration for your fish tank and aquarium. Can be torn to get a suitable size to fit your aquarium best. Easy to clean it for repeated use. Features -Color:White -Material:Cotton -Size:100.00X12.00X3.00cm/39.30X4.72X1.18in - The filter cotton adopted cotton material, safe for your shrimps, fish, tortoises, etc. - It can help to keep the water clear, suitable for water tank and pond, aquarium. It can purify the water, making a good environment for your fish. - Effective filtration and increase the oxygen in the fish tank with its strong water permeability. - Can be used repeatedly after easy cleaning, wear resistant and has good filtration ability. - The size is large enough, it also can be easily cut to suitable size to meet your needs. Package list: 1 x Aquarium Cotton Filter