Kent Marine AKM00981 10-Pack Stainless Steel Algae ProScraper Blade
Blade for the Kent proscraper ii. Rust-resistant, flexible 316 stainless steel is sharp enough to cut and scrape algae, yet is safer than a standard razor blade. Pack of 3, measures 3 Inch wide. For glass aquariums only. If you own a plastic or acrylic aquarium, consider a plastic Kent proscraper blade.