Blue Optics (8x8x10) is a cube affixed to the prongs of a quietly spinning anodized aluminum base. The interior cube is composed of dichroic, tinted, leaded, and non leaded glasses. The exterior clear part if optical crystal. The colors are vibrant and the angled cuts optimize what the glass can do with image. Light blues and violets morph into secondary colors and combine to create tertiary colors, all the while the interior images are reflected in the outer clear crystal. Fun to spin and watch.