Features: 100% brand new and high quality The filter pad is made of super dense thickened sponge with good water absorption and high permeability. Enhances the filtration cycle speed, filtering and decomposing dirt. Provide good living condition. Increase the oxygen solubility in aquarium and fish tank, create suitable living environment for your fish. Without dyeing, healthy and environmentally friendly, completely safe for all fish and other aquatic life. You can cut the sponge roll according to the size of the filter or the water tank, suitable for almost all water tank filters. Specification: Color: White Material: Sponge Width: app. 40cm(15.75in) Length: app. 100cm(39.37in) Quantity: 1 roll Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 roll x Aquarium Filter Sponge(other accessories demo in the picture is not included.)