The simple black and white, die-cut cards in Kaleidograph Contrast combine to make billions of complex geomteric designs. Invites visual exploration and experimentation. Eye-catching, crystalline, geometric forms appear with every flip or rotation of a card. Combine with Kaleidograph Crystal or Flora to add color and broaden design possibilites. Or take on the challenge of matching designs on the enclosed poster. Paperboard squares measure 4 3/4″. Easy to store and simple to use, Kaleidograph Contrast makes an ideal travel companion.