100% brand new and high quality Introduction: Hi,friend,are you annoying when clean the bottom of fish tank? Or being upset when the drain-pipe is stuck? Don't worry anymore,Here comes the " saviour " for your fish tank This perfect choice will help you decrease much troubles about fish tank cleaning,such as filtrating the pet excrement and forage leftover of aquarium or fish tank.And it's suitable for every kind of fish tank,you can cut any size according to your need. Features: Durable,Recyclable,good flexibility; Cultivate nitrobacteria; Keep the fish tank water clean; Easy to install,healthy material,non-toxic,odor free; High porosity and open cell,air flow,effective absorptivity,clean easily; Install everywhere you want it to clean,no matter horizontal or vertical; It can be cleaned easily after washing and effect will not degrade; Specification: Product Name:Biochemical Cotton Pond Fish Tank Large Block Filter Foam Aquarium Sponge Pads Material:Foam Color:Black Dimensions: app.100 cm x 12 cm x 2 cm / 39.37 x 4.72 x 0.79 inch Quantity: 1 pc Warm prompt: 1.For the reason of manual measurement,it will occur 1-3 cm error,please ensure that it is okay for you before ordering; 2.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding! 3.Fish Tank Filter Foam only,other accessories demo in the picture are not included. Packaging includes:Fish Tank Filter Foam x 1 (without retail package)