Created by a British engineer in the 1960s, Spirograph is recognized by generations as a favorite creative toy. Combining the principles of art and mathematics, Spirograph uses a system of precision engineered wheels and rings that are combined freely to create an endless variety of patterns. This deluxe set offers 22 Spirograph pieces, along with a guide book, three color pens and 20 design sheets, all in a carry-along case. Works with most pens, best with point size 1mm or smaller.