The Marina Algae Magnet Cleaner enables you to clean the inside of the aquarium's glass without getting your hands wet. The powerful magnets ensure a tight grip and the non-abrasive cleaning pads will not scratch the glass surface. The Marina Algae Magnet Cleaner is suitable for fresh and saltwater aquariums.*Powerful, magnetic cleaner for glass aquariums*Allows cleaning of inside glass without using hands in the water*Non-abrasive cleaning pad prevents scratching*Equipped with powerful magnet on the outside*Extra Large