Grab attention with this shattered glass illusion clear vinyl cling Buy our black awareness shatter window ribbon cling for yourself or your next event to raise awareness for black ribbon causes, including melanoma skin cancer. This 6" diameter vinyl static cling attaches to glass from either side. The vinyl is clear, with white "cracks" and the colored text and ribbon. Use a few drops of water and smooth it onto glass. Easy on, easy off. Also works on glass in your entryway, a whiteboard at work, or other smooth surface. On your vehicle, best to mount on the inside so it doesn't get knocked off by a car wash or heavy weather.