JBL Floaty II M

Easy to use. 

Loosen the floating inner element from the outer element and place on the water at the edge of the aquarium basin. Hold the outer element tightly against the aquarium pane and thus attract the floating component. Guide the magnet over the aquarium pane from the outside in slow circular movements.  Easy to use
A protruding edge allows cleaning even in hard-to-reach areas, such as behind technical equipment of the aquarium. Guiding through corners are easy without the need for a hand in the water.  Protection of the aquarium 
The edge protection patented by JBL, with the help of sloping edges, protects the silicone seams of the aquarium tank. The floating inner element cannot fall onto gravel and scratch the pane due to the lodged stones. In addition, it is no longer necessary to reach into the water if the magnet comes loose. Convenient and effective cleaning of aquarium panes up to max  6 mm glass: Cleaning magnet with floating inner element.
Patented JBL edge protection: The silicone seams of the aquarium are protected by bevelled edges. Floating inner element: No scratches on the pane due to jammed stones from the aquarium floor.