[A Must Tool for Photography] - If you want to take some amazing pictures, or some basic optical research, or as a gift for kids friends lover etc. this high quality K9 optical crystal photography prism set are highly recommend to you. | [High Quality K9 Crystal Prism Set] - Each of the optical glass triangular prism etc are made of high quality optically clear crystal and inspect by each QC team, make sure free of bubbles, distortions, color or inclusions. | [Muti-Function Use] - The clear crystal set are believed to clear our mind and absorb sunshine / moonlight too. Can add brightness and harmony to your life space or studio, also can use them for decoration or teaching. Like showing the rainbow and science physics teaching photography crystal equilateral fractal spectrum prism. | [Gift Box Packaging] - This optical set include: 1 x 55mm crystal ball, 1 x 50mm crystal prism, 1 x 50mm crystal cube, 1 x 60mm pyramid with the white gift box. Really an ideal gift for kids spectrum education. | [Gift Use for Students or Teachers] - Can be used as a gift for kids, students, teachers in the opening season, showing as a gift for Children`s day, Teacher`s day, Christmas, New Year, Birthday or some festivals.