High Density Soft Brush The aquarium magnetic brush features a soft, durable fabric that is resistant to tearing and wear. It effectively removes algae, moss, and dirt, and is safe for use in aquariums. Provides thorough cleaning with no residue. EASY TO USE The brush case is made of high-quality plastic, providing a comfortable, non-slip grip. The design is seamless and waterproof. As you move the outer magnet, the inner magnet follows, allowing for easy and efficient cleaning. Strong Magnetic Force This mini aquarium magnetic brush is lightweight and features strong magnetic attraction, ensuring reliable suction. Durable and practical, it is suitable for glass thicknesses of 3-6 mm (0.120.24 inches), ideal for both square and round tanks. Comprehensive Cleaning With this magnetic brush, clean both the inside and outside surfaces of your aquarium without submerging your hands in water. Makes glass cleaning convenient and time-saving. Package Included 3 mini magnetic aquarium brushes (1 blue, 1 white, 1 black). The set provides long-lasting use.