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 magnetic 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 meters long safety anti-falling rope, safe fall protection Instructions: ?1. Separate the two sides from each side ?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 on outside window, attach the other half inside window. ?5. Move glass wiper inside, start to clean window both sides. Product parameters: Product Name: Double-sided magnetic glass cleaner material: plastic Size: 160x145x55mm Safety rope: 2M Specifications: 5-35mm single and double three-layer glass universal Scope: windows, fish tanks, skylights, patio doors, bedroom windows, shower screens, mirrors and tiles Feel free to ask our customer service any questions you may have.? [Service Guarantee] Your satisfaction is our top priority. Our products are fully tested and quality assured before leaving the factory and can be purchased with confidence. If you have any questions, please feel free to contact us so that we can provide you with the best service. ? [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. ? [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 magnetic design is easy to scrub.