AQUARIUM MAGNET FOR ROUNDED GLASS CLEANING: Specific floating magnet for cleaning rounded glass, for freshwater and marine aquariums, size 6x5x3 cm EXTRA STRONG MAGNET: The product is made with a strong hold magnet and this allows you to switch from one glass to another without pulling the magnet out of the water. IT DOES NOT SCRATCH: The presence of an internal abrasive surface allows rapid cleaning of the glass from algae and encrustation without scratching or damaging it. FLOATING: Being equipped with a floating structure, if the squeegee falls deeply, it will be possible to recover it easily. ADVICE ON USE: When cleaning the glasses, it is advisable not to get grains of sand and gravel between the glass and the magnet as these could irreparably scratch the glasses themselves.