How to remove the plastic window clings on the glass window?

1, the first glass window surface of the plastic windowpane tear down, because long attached may have residual glue or color residue in the glass window:

2, take a household ordinary steel wire ball, dipped in wet pour detergent:

3, scrub the residual windowpane, because the glass material is harder, will not leave a mark:

4, if there is still a residue, then use a towel dipped in alcohol or ordinary white wine, and then wipe the glass to remove the mark:

4, if there are still residual. Then use a towel dipped in alcohol or ordinary white wine, and then wipe the glass to remove the mark: