Our aquarium filter bag is made of durable polyester fibre, featured with strong filtration, high water permeability, easy-to-clean and good durability. Our product’s consistent, reliable design gives superior filtration for your fish tank. Let your lovely fishes and tortoises enjoy the clean water. Features: Made of polyester fibre, durable, non-toxic and safe for aquarium use. High water permeability and strong filtration. Adopt wetland aquatic plant purification theory to decompose the dirt. Fine fibre can effectively filter impurities in the water. Easy to clean, machine washable and would not be deformed. Specifications: Size: 1124cm / 2035cm / 20*45cm (Optional) Color: White Material: Polyester Fibre Package Weight: 31-70g Note: Cover the water outlet with the filter bag, please make sure the wool side is inward. Package List: 1 * Aquarium Filter Bag