Floating Internal Element: If the internal cleaning piece detaches from the external magnet, it floats to the top of the water instead of sinking. This prevents it from trapping gravel or substrate that could scratch your aquarium glass. , 

• Blunt Blade Attachment: Equipped with a non-sharp, blunt stainless steel blade insert specifically designed to scrape away tough deposits like calcareous encrusting algae without risk of cuts. 
• Patented Silicone Protection: The internal component features angled, bevelled edges to protect the delicate silicone seals in the corners of your tank. 
• Protruding Cleaning Edge: Designed with a prominent angled corner to easily reach tight spots, such as behind internal filters, heaters, or technical equipment.