The Mag Float-130A Medium Acrylic Aquarium Cleaner
Recommend to be used on acrylic aquariums from 1 up to 125 gallons with a surface thickness up to 3/8".
Product dimensions: (3-7/8" x 1-3/8" x 1")
The Mag-Float cleaners contain special abrasive velcro pads that remove algae from the surface of your aquarium
The Mag-Float floats when the inner magnet separates from the outer magnet. Because you never have to reach into the aquarium, not only can you stay clean and dry, but you also avoid toxic lotions or soap residue on your skin from getting into your aquarium water.