Triangular shaped magnetic glass wiper with flexible rotation for thorough cleaning without dead ends. The internal magnet locks the two cleaning sides together so you can clean both sides of a window from one movement; when you move one side, the other follows, making window cleaning especially convenient. Suitable for glass thickness 535 mm, including single layer glass, thickened glass, tempered glass, and doublelayer insulating glass. Made of ABS material and silicone with NdFeB magnet, providing strong magnetic force. The magnet is not easy to demagnetize. The inside cleaning cotton and wiper strips are detachable for easy replacement and cleaning, delivering a longlasting window cleaning tool. The magnetic force is adjustable. Counterclockwise rotary gear increases magnetism, clockwise decreases, to adapt to different glass thicknesses, ensuring firm adsorption and easy removal. Use scenarios Clean interior and exterior surfaces of windows on multistory buildings or hardtoreach panes, including windows, from a safe inside position. Clean various glass types and thicknesses (535 mm) such as singlelayer, tempered, thickened, and doublelayer insulating glass in homes, offices, or storefronts. Maintain or worn components easily by detaching the inner cleaning cotton and wiper strips, extending the tool's service life.