Magnetic Aquarium Sponge – Touchless Glass Cleaner, Double-Sided Floating, Ideal for Algae & Deposits, White

Size: 3*3*3cm Strong magnetic force, stable and waterproof, no dislodging. The innovative design with 4 rounded corners won't damage the aquarium. The correct way to open the magnetic brush is to rotate the two brush heads 90 degrees to open them, then use force to separate them. After separation, do not hold them too close to avoid pinching your fingers. The inner brush is designed to scrape the surface without damaging the glass, and the outer brush is made of felt to clean and remove microscopic marks. This brush removes all algae from the aquarium wall, leaving no dead spots, and cleans all corners of the aquarium, leaving only clear marks and no dead spots.