Easy and Fast: You simply slide the no-scratch curved handle inside your aquarium, the scrubber will follow while cleaning Super Magnetic: Powerful suction force, less time spent, more energy saved when cleaning the fish tank Floating Design: Applied on the inner surface of the glass,Clear the water difficult to remove attachments,avoid accidentally dropping into the water tank, not suitable to take Scope of application: Applicable to all kinds fishbowl size 30-50cm, glass thickness less than 4mm Anti-slip handle: Non-slip handle increases friction with the hand, to facilitate cleaning