The Flipper Cleaner is the most versatile aquarium magnet cleaner available for both glass and acrylic aquariums.* The patented design allows it to “Flip” inside the tank simply by rotating the outer handle! With a large soft scrubbing pad on one side for daily maintenance and a Flip over to a stainless steel blade on the opposite side for removal of hard algae, it is all you will ever need to keep your glass crystal clear without ever reaching in the tank! Now available in three (3) sizes. * nano cleaner only come with stainless steal blade for glass aquariums.