[feature] Double-sided cleaning brush, get twice the result with half the effort. This magnetic glass wiper contains two pieces, one for indoor use and the other for outdoor use. Double sided glass wiper for 3-8mm single glazing. Through the strong adsorption of powerful magnets, the two pieces work together and take the same steps. You don't need to run around indoors and outdoors cleaning the inside and outside of the glass, You simply stay on one side (e.g. indoors) and the other piece on the outside of the window will move the same route to the one inside and clean at the same time. [product information] Product name: Glass wiper set color: blue Material: ABS Size: 16*13.5*3.5cm Packing list (obtained after purchasing one item): Glass wiper set*1 beg to be excused: 1. Due to the long shipping time, the items may be damaged during transportation. If the items are damaged, please leave us a message through the official website immediately before leaving a comment and I will solve the problem for you. 2. Due to manual measurement, there may be an error of 1-3cm in size. 3. Colors may vary depending on your monitor.