This K 9 Optical Crystal set from SAILHOME is a versatile tool for photography and optical research.
Each piece is made of high quality optically clear crystal and is free of bubbles, distortions, color, or inclusions. The set includes a 55mm crystal ball, 50mm crystal prism, 50mm crystal cube, and 60mm pyramid, all packaged in a white gift box.
The crystals can also be used for decoration, teaching, or to add brightness and harmony to your living or studio space.