kuou Aquarium Fish Tank Cleaning Sponge Brush, Reusable Fish Tank Cleaner Algae Clean Brush Double Face Sponge for Glass TankSize: 40cm 15. 74inch. Material: Made of good quality sponge, removing tough sticking algae and scum without damaging your tank. It can be reused many times. Long Handle: The fish tank cleaning sponge brush has a long handle that you can clean the fish tank very easily. Practical: The fish tank cleaning sponge brush are durable and reusable. Application: Good contact with aquarium fish tank and easily reach to the place that not easy to reach,