Feature: 1. ROTATING HEAD: Aquarium algae scraper is designed with a rotating head, especially for cleaning the bottom and back glass of aquariums. 2. EXTENSION BAR: Aquarium glass scraper has an extension bar to extend the length of the scraper for deeper tanks. 3. DURABLE SCREWS: Fish tank algae scraper uses special screws that are resistant to seawater corrosion, ensuring strength and durability. 4. EASY TO INSTALL: Fish tank scraper adopts one piece molding process, the metal screws are set directly into the spacer, easy to install and remove the blade. 5. LIGHTWEIGHT AND DURABLE: Fish tank glass cleaner is made of premium material, with strong and durable structure, light weight and easy to use. Specification: Item Type: Aquarium Algae Scraper Material: Aluminum Alloy, Engineering Plastic. Package List: 1 x Protective Cover1 x Knife Head1 x Anti Slip Handle1 x Extension Bar10 x Blade Note: All data are measured manually, and there are certain errors in the measurement results.