Home Double (18-30mm) Magnetic Side Window Cleaner Heavy Duty As Well Side Glass Wiper Tool Surface Cleaning Brush with Handle Ergonomic DesignColor Purple, white Style 18-30mm Item dimensions L x W x H 16 x 7 x 13.5 centimeters Material Rubber disc About this item Strong absorption: baffect window cleaner is effective for single and double glazing with a thickness of 18 to 30 mm. Make sure your window thickness is between 18-30 mm. You can clean the inside and outside of the window just by standing in the house. Clean both sides of the window at the same time: stay in the room to clean the inside and outside of the window at the same time thanks to the magnetic design. Perfect for house windows, greenhouses, car windows, conservatories, etc. Measure the thickness of the window pane before purchasing. Measure the total thickness of the window frame and the outer and inner thickness of the window frame. The actual thickness of the window pane = the total thickness of the window frame - the outer thickness of the window frame - the inner thickness of the window frame. Super quality: Ultra-strong ABS, ferro-boron alnico and rubber band. It is practical, strong, anti-fall and durable. Be careful not to pinch your fingers when using it, this is very very important. Product size (L*W*H): 16*13.5*7cm. The window cleaner is suitable for single and double glazing with a total thickness of 18-30 mm and not for triple glazing. If you are not sure how thick your window is, we recommend choosing the magnetic window cleaner which is adjustable from 4 to 30 mm.