Butterfly Anaglyph Glasses Sku(s): 461200 Description: Who said Worth 4-Dot anaglyph tests had to be done with boring test glasses? Add some fun to your tests with colorful Butterfly Fun Anaglyph glasses to help with children's vision tests. These polarized glasses are very colorful and are extremely durable! Not for possession by children under 3 years old. Also available as tigers, horses and parrots.