Crafted from, washable materials, these aquarium filter bags are reusable. The fine mesh design allows for efficient filtration, capturing even the smallest particles. for use with activated carbon, ceramic rings, or other filter media, these bags enhance the overall performance of your aquarium's filtration system. Features -Color:Black -Material:Polyester -Size:15.00X10.00X0.20cm/5.89X3.93X0.08in -Efficient impurity removal: ensures precise filtration to maintain clear and clean water in your aquarium -Easy maintenance: the zipper feature allows for quick and easy cleaning and replacement of filter media - : constructed from durable materials that withstand wear and tear, ensuring extended use -Universal compatibility: designed to fit a wide range of aquarium sizes, catering to diverse filtration requirements -Optimal water flow: boosts water circulation, promoting a healthier aquatic environment for your fish Package list: 20 tank filter bag