According to my experience, this highly recommended prism is a must-have for any science teacher or student. The crystal-clear quality of the acrylic PRISM beautifully disperses light and enhances the visualization of scientific concepts. It is lightweight and easy-to-use, making it perfect for classroom demonstrations. The only downside is that it may be fragile if not handled with care .Overall this is a great investment for any industrial and scientific education enthusiast..