Due to different lighting effects and environments, display brightness settings, etc., the color of the actual item may be slightly different, please refer to the actual item. Regarding the size, please allow a difference of 1-3 cm due to manual measurement, thank you for your understanding! Note: Please choose the appropriate version according to the thickness of the glass otherwise it may not work.The magnet of this glass wiper is powerful please pay attention to your hand when use this cleaning tool. Feature: Multi-functional double sided glass cleaner wiper clean glass quickly and easy Stay in the room to clean inside and outside window at the same time 2.5 meters long safety anti-falling rope safe fall protection Instructions: 1. Separate the two sides from each side (there is a anti-pinch spacer between two sides) 2. Dip the spong in the water with detergent. 3. Put the security rope on the wrist. 4. Open window and attach the half wiper (with safe rope) on outside window attach the other half (with handle) inside window. 5. Move glass wiper inside start to clean window both sides. Product parameters: Product Name: Double-sided glass cleaner Material: ABS engineering plastic rubber neodymium iron boron magnet Color: white blue blue white blue Specifications: double glazing use Safety rope: 2.5M Product size: 12x11x11cm Scope of application: 15-23 millimeter 15-25mm 23-30mm Applicable scenes: windows fish tanks skylights patio doors bedroom windows shower screAfter-sales: If you have any questions about our glass cleaner, window cleaner, please feel free to contact us, we will serve you within 24 hours!. [Easy to clean]: With this window cleaner you can easily clean windows from the inside safe and convenient. [unique design]: This window cleaner is double-sided and has a powerful magnet which is very safe and convenient. The triangular design makes it easy to clean the corners the cleaning cotton is detachable and the design is easy to scrub. [Multipurpose]: This window cleaner can be used to clean windows fish tanks skylights patio doors bedroom windows and even shower screens mirrors and tiles. [Environmental Materials]: The window cleaner is mainly made of high-quality plastic practical firm anti-fall and durable.