Description It is manufactured with premium material for durable and long-lasting use. Precise design, fine workmanship, offers good reflections and color separation. It is easy to carry and can be used for photography, teaching, learning, presentation, etc. Features -Color:As Shown -Material:Glass, plastic -Size:18.00X11.00X7.00cm/7.07X4.32X2.75in - It has a simple design, but very practical in use, can be used forlight spectrum physics.- Precise and wonderful detail design, offer good reflections and color separation, excellent performance.- Light in weight and portable, the optical triangular prism is easy to carry and storage.- Can help students learn and understand more specifically how to find the principle of light convergence.- It is a good helper for teachers, parents, train teachers, professors, researchers, etc. Packing list: 1 x Triangular Prism with Stand