Details: Ball Shaped Faceted Hanging Prism 30mm This 30mm faceted ball crystal is available with a hole in order to be hanged in the window so that it projects beautiful rainbows when the sun light its it. With a simple turn upside down it also makes a great table top decoration on our small ball stand. The reflected rainbows are a pleasure to look at producing calm thoughts and feelings. They are great for Feng Shui followers .