A spectrum is formed by a ray of light passing through a prism.
Structure: X-CUBE
Material: Glass
* Material: Glass
* Shape: Plano
* Usage: Optical
* Size: 2.2*2.2*2.15cm
* Structure: Other
* Net weight/pc: 25g
* There are some defective prisms from factory, they cant be used on optics and projector, but can be used as teaching tools or research and decorations, they are very beautiful!!