Features: Magnetic distribution design, strong magnetic. The triangular design makes it easy to wipe corners. Water fillable glass cleaner, more efficient and cleaner. This magnetic window cleaner allows you to clean outside windows in your room. It can also be used in fish tanks, patio doors, bedroom windows and even shower screens and mirrors. Effective for Single-glazed windows (Double Sided Cleaning) with thickness between 3-8mm. Description: Material: ABS, magnet Color: As Shown Size: 15*13*4.5cm Package includes: 1 x Magnetic Window CleanerYou just stay one side only(For example indoor ), the other piece on the outer side of window will move following the same route to that piece indoor, and do the cleaning simultaneously. You dont need to rush between indoor and outdoor, clean inner side and outer side of the glass. The two pieces work together and walk the same steps by strong adsorption of powerful magnet. This magnetic glass wiper contains two pieces, one piece for indoor, and the other for outdoor. Double-sided glazing wipe for single pane glass from 3-8 mm. Double-sided cleaning brush can twice the efficiency with half labour saved.