35mm sun shaped prism, 1-1/2 inches over 1/2 inch thick. Vitrail medium has a silver coating on the back that creates vivid hues on the front side. Round with a circular clear center and facets spreading out from the center circle. This is the only vitrail medium sun I have seen, it radiates gorgeous deep tone colors and is gorgeous with or without the sun shining. Perfect rainbow maker to hang in your window or on your Christmas tree. There is a hole at the top to hang it by. Your prism will come gift boxed with a bow as pictured. Beads and hanging filament included.