Features: 1.Dual Use: Magnetic fish tank brush with replaceable algae scraper, the magnetic brush scraper can be used interchangeably for two brushes in one. 2.Floating Design: Magnetic aquarium glass cleaner is an automatic floating design, the two poles separate and automatically float to the surface. 3.Comfortable to Hold: The aquarium magnetic brush is ergonomically designed for a comfortable grip and ease of use. 4.Strong Magnetic Force: The strong fish tank cleaner has a reinforced magnetic design that sticks tightly to the glass and does not come off. 5.Notice: Magnetic fish tank brush has too much suction. When opening, rotate the two brush surfaces to 90 and then break them apart. Specification: Item Type: Aquarium Magnetic Brush Material: Plastic Size: Approx. 115x65x50mm / 4.5x2.6x2.0in Use: Fish Tank Cleaning Magnetic Brush Applicable Glass Thickness: 10-25mm/0.4-1.0in Fish Tank: 80-200cm/31.5-78.7in Fish Tank PackageList: 1 x Magnetic Brush 2 x Scraper 1 x Manual Note 1. Do not approach or use with a pacemaker. 2. Please allow some error in manual measurement.