Checkerboard Suncatcher 40mm 1-1/2 inch Aurora Borealis Austrian Crystal Prism Suncatcher - Great for Feng Shui Checkerboard Suncatcher 40mm 1-1/2 inch Aurora Borealis AB Austrian Prism Diamond shaped prism with criss cross faceting Brilliant window prism pendant you can use for Feng Shui, or just to flash rainbows and reflected color everywhere.