Feature: 1. Powerful Suction: Aquarium magnetic brush adopts powerful double magnetic suction, trickle neodymium iron, suspension design, not easy to fall off. 2. Deep Cleaning: Fish tank magnetic brush is scraped to clear, deep stain removal, scraping synchronization, no scratches. Ergonomic handle, comfortable grip. 3. Widely Applicable: Fish tank magnetic brush is suitable for all kinds of tank cleaning problems, such as tank wall algae, tank wall dirt, water mist removal, etc. 4. Easy to Use: Fish tank algae scraper is easy to operate, just turn it 90 degrees clockwise or counterclockwise to open or close. 5. Note: Due to the special characteristics of super white fish tank and acrylic fish tank, it is recommended that the fish tank magnetic brush be used in the middle of the filter cotton. Specification: Item Type: Aquarium Magnetic Brush Material: ABS, NdFeB Magnets Size: Approx. 30x27x30mm / 1.2x1.1x1.2in. Package List: 1 Set x Aquarium Magnetic Brush (2pcs) Note: 1. The product suction is too strong, open the two brush surface rotate to 90 degree and then force to break apart, after separation to avoid pinching fingers.2. Prohibit exposure to the sun, prohibit children from playing, do not close to the magnetic card, do not use if you have a pacemaker installed.3. Please allow for some errors in manual measurements.