M for Thicknesses of 0.2-0.4 inch Fish Tank: Mainly used to clean algae and impurities on the aquarium wall; Comes with one stainless steel blade and one plastic blade; Suitable for all sizes of aquariums, just need to match the thickness
Suitable for Glass and Acrylic: The stainless steel scraper is suitable for glass aquariums and the plastic scraper is suitable for acrylic plastic aquariums; It is very easy to replace, please be careful with your hands when replacing
Magnetically Strong and Floating: The magnetism is very strong,perfectly adsorbed on the glass,free move to clean up; at will even through right angle; Beyond the magnetic distance, the algae scrapers brush floats on water; Simple disassembly and assembly