Glass aquarium cleaner Recommend to be used on aquarium surfaces ranging from 1 ½” to 2” Product dimensions: (8 ¼” x 3 ½” x 1 6/16”) (Note: Can also be used on acrylic aquariums) Item #01000 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