Replacement blades forThe Sera Scraper XL

The Sera scraper XL allows quick and thorough removal of algae and other dirt on the aquarium glass. Contains three differentblade stylesthat are easy toswap – one stainless steel blade for glass, one plastic blade for acrylic glass, and one sponge blade for soft layers – for cleaning the inside aquarium glass appropriately and gently. Even persistent algae can be removed without effort.