[High-density soft brush] The fabric of the aquarium magnetic brush is soft, not easy to tear and wear-resistant. It can be used to scrape algae, moss, dirt, etc., and is aquarium safe. It completely cleans the aquarium without leaving any residue. [Easy to use] The shell is made of high quality plastic material, comfortable to hold, seamless and with non-slip and waterproof effect. When you move the outer magnet, the inner magnet will follow the movement, which will make it easier for you to fully clean. [Strong magnetic force] This mini magnetic aquarium brush is light and beautiful, has a strong magnetic attraction, strong absorption, durable and practical, suitable for 3-6mm/0.12-0.24inch glass, very suitable for square or round tanks. [Full cleaning] Using a magnetic brush, you can clean the inside and outside of the algae water tank without putting your arms in the water, saving your time and cleaning more effectively glass. [Package Include] You will get 3 mini magnetic fish