Description This Fish Tank FilterCubeis well-made of active carbon. Effectively remove some bad substances in water. Use this fish tank filter to absorb impurities, purify your water naturally. Fine workmanship ensures the efficiency of water purification. Features -Color:Black -Material:Active carbon -Size:10.00X10.00X10.00cm/3.93X3.93X3.93in -This product has a good filtering effect and can remove harmful substances in the water. -Simply put it in the aquarium cube, notools required and zero assembly, easy to use. -Exquisite in craftsmanship and convenient, and is deeply loved by the people who lovefish-farming. - Promotes the growth of beneficial and protects the pump from detritus in the fish tank. -Fish Tank Filter has a good filtering effect and can achieve a better water purification effect.Package list: 1 x Water Purification Cube