Check the listing for details. Scraper Holder & Blade for Small & Medium Acrylic Aquarium Cleaners - Mag Float. Condition: New. Listed at 5.99 USD. Acrylic Scraper Holder & Blade Contains 1 scraper holder and 1 acrylic safe blade Attaches to: the Small & Medium acrylic Mag-Float sizes Not included with the Small & Medium acrylic cleaners (optional) Easy removal of algae from glass/acrylic surfaces No longer knock over decorations, damage corals and invertebrates No longer get your hands submerged into the water of the fish tank Time/money saver on maintenance Large cleaning surface area makes the job quick and efficient Stays free of debris Can be maintained attached to aquarium surface Strong, high-quality neodymium rare earth magnets Can be used on freshwater and saltwater tanks Magnet does not lose strength over time Easy retrieval of inner magnet Listing and template services provided by inkFrog