1. Compact Design: This mini aquarium cleaning brush measures 30 x 30 x 27 mm, specifically designed for aquariums with a capacity of 30 gallons or less and glass or PVC walls up to 6 mm thick. Keep your small aquarium crystal clear without the hassle of traditional cleaning methods. 2. Magnetic Technology: Powerful internal magnets allow you to clean both sides of the tank simultaneously without getting your hands wet. Simply glide the outer part along the glass, and the inner cleaning pad follows, removing algae and dirt with minimal effort. 3. Soft Fiber Cover: Both sides of the cleaner are covered with gentle fibers that effectively remove algae and grime while preventing scratches on delicate glass or PVC tank walls, making it safe for all aquarium surfaces. 4. Easy to Use: The intuitive magnetic design ensures precise cleaning of hardtoreach spots. Just position the cleaner on the outside of the tank and let the magnetic connection do the work—saving time and keeping your aquatic environment spotless.