Simply place prism in direct sunlight and get a beautiful rainbow of light.
This kind of optical glass prism can reflect sunlight in seven colors. It can be used to teach children to explore the mysteries of light, to stimulate a child's thirst for knowledge, and improve the interest to understand the magical world for children.
Side Length: 25mm
Prism Length: 80 mm
The package includes: 1 x prism
Easy chip/breakable so not for small children.
See fun video as actually tried and tested by us and our cat.