Prism 50mm Pack of 12

• Optical glass prism DIY reflection prisms equilateral prism 50 mm x 50mm size.
• This kind of optical glass prism can reflect seven-color sunlight.
• It can teach children to explore the mysteries of light, stimulate a child's thirst for knowledge.
• Improve the children's interest of understanding the magic world.
• Size : 50*50*50* mm' package included:12*optical glass prism