6 Pieces Filter Foam Sponges Aquarium Filter Bio Sponge Filter Media Pad Aquarium Bio Sponge Sheet Cut-to-Size Foam for Aquarium Fish Tank Pond

Features: The bio filter sponge with suitable thickness is easier to cut. Fit most aquariums, fish tanks and ponds, etc. The the bore diameter of the sponge is fine that can filter a large amount of waste without blockage. Specifications: Material: sponge Color: black Size: approx. 9 x 9 x 1 inches Package includes: 6 x Filter Foam Sponges Notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays.