The ProScraper 3.0 Short Aquarium Algae Scraper is great for removing algae from aquariums and hard to reach corners. The scraper comes with a stainless-steel blade and a plastic blade to suit all cleaning needs. It also comes with a frozen food and seaweed feeder for a fun, clean and interactive way to feed your fish. It features a rubberized grip to reduce slipping when wet and to properly fit the palm of your hand. The strong fiberglass handle provides the proper leverage for any cleaning job and resists corrosion for a lifetime of use. The Twist & Click design makes it easy to switch your blades or replace them when they become worn. To change the blade, click out the tabs from the head, twist blade and remove. To replace the blade, insert blade at an angle, twist and click in the blade tabs to lock into the head. Replacement blades also available.