Crystal Matrix Illusion Feng Shui Window Prism 89mm / 3.5 Inches. Hailed from Austria this beautifully faceted and hand polished crystal prism will make an excellent addition to your collection. You can use it for multi purposes such as; hang it from your kitchen or bedroom window, use it for other feng-shui decoration ideas, use it as end piece to your chandelier, use it on your Christmas tree etc. Wherever you choose to hang it it will amazing reflections of light to your life. These reflections are believed tog give you a lot of positive energy and even lift your spirit.