1.【Magnetic Window Cleaner】With strong double-sided magnetic design, this magnetic window cleaner enables you to clean your windows without risking standing at the window, the best tool for cleaning high-rise glass. This cleaner is specially for thickness window, so the magnetism is strong enough to make sure it doesn’t fall easily． 2.【Unique Modern Design】The triangular-designed magnetic glass cleaner can wipe to the narrow areas on the window without dead corners. The built-in water storage sponge is easy to use and can be used for a long time, avoiding repetitive water replenishment. And the cleaning sponges, cleaning wipers and fixed buttons can be replaced. 3.【Safer Anti-falling Rope】 Our magnet window cleaner comes with long and safe anti-falling rope. When you use it, the rope should be tied to your hand to prevent the window cleaner falling down. You can clean the outside window by standing in the room and wipe the glass more securely. 4.【Anti-pinch Separator】For thicker or double-layer or vacuum glass, strong magnetic force is required, so please use this magnetic glass wiper correctly. Hold the handle of window cleaner, and rotate the two sides of the window cleaner by 90 degrees. Please pay attention to your hand when you close or take them apart. 5.【How to choose it?】Please make sure your glass thickness before order and choose the correct size. Different magnetic glass cleaners should be used on glass with different thicknesses, otherwise they can not move or fall off. The glass thickness is “the total thickness of window frame” minus “the outside thickness of window frame” minus “the inside thickness of window frame”. Please measure them and calculate your glass thickness.