Effective Aquarium Glass CleanerMagnet aquarium cleaner can clean aquariums indoors and outdoors at the same time. Velcro on the inner brush catches algae and dirt on the glass and does not scratch the glass. Aquarium cleaning brush for exterior glass, the fabric is soft and easy to clean, and it can scrub the dust on the glass. Powerful Aquarium MagnetAquarium Glass Cleaner is super magnetic. It can firmly hold glass less than 10mm thick. It is very effective and convenient to clean the inside of the aquarium, just control it with a magnetic aquarium brush with a handle outside the tank. Aquarium Algae ScraperAquarium Glass Cleaner Magnet includes an algae scraper that works with a magnetic aquarium window cleaner to easily remove algae or stains from the corners of the aquarium glass. Scraper hooks into the snap on the bottom front of the brush (the part without the handle), so no additional mounting hardware is needed. Easier to CleanMagnetic Aquarium Brush with ergonomic handle to fit the palm of your hand. Aquarium cleaner sponge used inside the tank floats when released, preventing sinking and not disturbing aquatic animals or plants. NoteDue to the strong magnetic force aquarium cleaner , When opening, please rotate the two brush surfaces to a 90 degree angle and then separate them. After disconnection, do not approach them to avoid pinching your fingers. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display , there may be color differences, please refer to the actual item received.