[Effortless Cleaning for Double Layer Windows] Experience hassle-free cleaning for your double layer windows with this upgraded most powerful magnetic window cleaner. It effortlessly cleans both sides of the glass in one go, including hard-to-reach areas outside. Enjoy sparkling clean windows with ease! [Unparalleled Magnetic Power for 20-30mm Windows] Introducing the strongest version on the market! Our new magnetic window cleaner is expertly designed to tackle double-layer windows with a thickness ranging from 20 to 30mm. This level of versatility and power is a rarity in the market, ensuring you can confidently clean even the thickest windows. Experience unmatched cleaning efficiency and security with our advanced magnetic technology. [Convenient Water Storage and Squeegee] No more constant refills! This window cleaner features a built-in water storage sponge that eliminates the need for frequent water additions. The sponge can be easily removed and replaced as needed. Additionally, the squeegee ensures a streak-free finish, leaving your windows spotless and crystal clear. [Important Safety Notice: Handle with Care ]Please exercise caution when assembling two pieces of the cleaner together. Due to the super-strong magnetic power, there is a risk of accidental finger pinching. To prevent this, always remember to place the anti-pinch board first before joining the pieces. If you encounter any problems during use, please feel free to contact us at any time