This Top Fin Aquarium Scraper will help to keep your aquarium clean and healthy. This stainless steel scraper is perfect for removing tough algae from glass aquariums. Only at PetSmart. Features: Stainless steel blade helps remove algae; Non-slip easy to grip handle Includes: 1 Powersweep Intended For: Glass Aquariums Size: Available in 1 in (27.9cm) and 18 in (45.7cm) Sizes Caution: This is not a toy. Keep out of reach of children. Size: Small.