Features 1、[Safe Filter Materials] Aquarium filter pads with nano bio sponge filter and fibre bio sponge filter, activated carbon cotton, no cotton fibres and particles. 2、[Eco Friendly] Aquarium filter media is produced without the use of chemicals and is safe for all freshwater or saltwater fish, tanks and pond, ensuring the health of fish. 3、[Cuttable And Reusable] Aquarium filter mats are finally bonded with high strength eco friendly resin for strength, cuttable and can be cleaned many times. 4、[Aquarium Accessories] Fish tank filter pad can be used as pre filters for dry and wet filters, for suspension filters, tank filters, catch basin and pond filters. 5、[Multi Applications] This filter mat is perfect for freshwater or saltwater aquariums, fish tanks, shrimp tanks, turtle tanks, terrariums, maintaining good water quality. Specifications: Item Type: Aquarium Filter Pad Material: Filter Cotton Size: Approx. 40 x 30 x 2cm / 15.7 x 11.8 x 0.8in Package List 1 x Aquarium Filter Pad