Material: The body is made of strong and safe material, durable, compact and comfortable to ensure the safety of fish aquarium creatures.Function: Can be used for daily cleaning and aquascaping, effortlessly removes water stains and algae, cleans and cares for gravel and aquatic plants, and provides a clean and tidy environment for the fish. Brush can be taken off and clean the dead cornor of the fish tank. Also can be used to tidy up the Sands and Dirts in Fish Tank. Easy Installation, No Damage to Glass: This aquarium algae scraper is perfect for descaling and peeling glass aquarium and various glass surfaces. Easy to clean and will not damage the surface of the aquarium. Special note: Not recommended for acrylic aquariums.Service: If you have any questions about our products, please feel free to contact us. We will spare no effort to give you a good solution.