Be confident in your purchase we're an Authorized D-D Dealer. How cool is that?!?!? Features: For Glass tanks Up to 1/4" (6MM) Thick Dual Sided Magnetic Cleaner: Scrubber Pad / Scraper Blade Simply Flip the Handle to Use the Opposite Side Small Compact Design 1.25" x 1.25" Inside Scrubbing Surface | 1.225" x 1.25" Outside Handle Use Caution Near Sand Line. Trapped Sand Can Scratch Aquarium Glass Replaceable Blades 1 Year Manufacturer's Warranty Flipper's Signature 2-in-1 Magnetic Scrubber / Scraper in a fun-sized design for quick daily soft algae removal! Small dual-sided magnetic aquarium cleaner has an abrasive scrubbing pad on one side and with just a twist of the outside handle, the scrubbing pad FL!PS inside the tank to an algae busting scraper. Complete and efficient hands-dry aquarium cleaning! Great for small tanks! Easily Flips around square corners. Keep your glass aquarium fish tank looking as good as the day you bought it! Strong rare earth magnets make it easy to clean your tank without getting your hands wet! Scrub and scrape all day with Flipper's patented fun flipping action!