Made of super strong magnet and plastic, durable and practical. Strong absorbency and strong magnetic attraction. As you move the outer magnet, the inner magnet follows to remove floating algae faster and easier. Easy to clean. As you move the outer magnet, the inner magnet will follow, cleaning the glass. Have fun cleaning up. The upgraded soft handle is streamlined, non-slip, comfortable, saves space and time. Note: Not suitable for acrylic aquariums and low iron glass aquariums. Floating design: the interior brush does not sink into the deepest depths of the aquarium. Convenient to use. Strong magnet for use in tanks of different thicknesses (less than 4 mm). Instructions: Step 1. Place a piece without handle into the fish tank first, then put the brush with the handle outside the fish tank, maintain the absorption state of the two brushes. Step 2. Start to move the outer magnetic brush to push the magnetic brush into the aquarium to clean the aquarium wall. Step 3. The magnetic
