Do you want to replace the old sponge sleeve of your tank filter? If so, our pre-filter sponges are carefully prepared for you. material that can ensure its durability and practicability. It is easy to install and use, saving the time and efforts. Features - Color: Black. - Material: Sponge. - Size: Approx. 8.7 x 5 x 5 cm / 3.42 x 1.97 x 1.97 inch. - Hole Diameter: Approx. 2 cm / 0.78 inch. - The intake strainer cover slips easily cover the intake tube and prevent any of the fish from entering into it. - Easy to use directly into the water inlet. Suitable for fish tank and aquarium. - Can trap particles and debris, so that the filter can be used for a long time. - Whether you are a novice or an experienced person, it is easy for you to operate. - A wonderful your family and friends who like raising fish. Package list: 5 x Pre Filter Sponges