Put the prism in the sunlight on a table and see a beautiful rainbow on the opposite wall of the room;When looking through the prism, you can see that the transition points from light to dark have coloured stripes;The glass prism will give more intense and luminous colours;For all ages, also at your work place and therapy rooms;Made in Germany with high quality material; Conforms to safety standards

• Kraul Glass Prism (Large)

Kraul Glass Prism (Large)Walter Kraul GmbH