Feature: 1. ERGONOMIC HAND GRIP SHAPE: Floating magnetic aquarium glass cleaner features an ergonomic hand grip shape, frosted texture and non slip design. 2. DOUBLE BLADE: Fish tank algae scraper adopts double headed scraper to clean comprehensively and optimize scraping effect, self floating function can be used in all corners. 3. EASY ALGAE REMOVAL: Inner brush sealed hollow design, remove brush suspension not sink, easy to remove algae, outer brush soft bristles do not hurt the tank wall. 4. 4X STRONG MAGNETIC SUCTION: Aquarium magnetic brush has 4x strong magnetic suction, ten years without demagnetization, durable scraping blade, a scrape that is clean. 5. NOTE: Fish tank magnetic brush has strong magnetism, please don't break it by force to cause accidental injury, to separate the magnetic brush need to twist 90 degree. Specification: Item Type: Magnetic Algae Scraper Material: Plastic, Neodymium Magnet Use: Fish Tank Magnetic Brush Applicable Fish Tank: Within 80cm/31.5in Applicable Tank Wall Thickness: 6mm/0.2in Size: Approx. 75x135x50mm / 3.0x5.3x2.0in. Package List: 1 x Magnetic Algae Scraper2 x Scraping Blade Note: 1. Pacemaker wearers are prohibited to approach.2. Please do not use this product for acrylic, plastic crystal and super white fish tank.3. Please allow some error due to manual measurement.