Create spectacular spirals and experiment with the templates to generate an infinite number of colourful designs. This title includes: 2 pens, 2 spiral templates and 3 gears to make hundreds of different designs. The book included reveals the mathematical principles behind spiral art. Create spectacular spirals by popping a pen into a gear and mover it around a toothy template. Experiment with the three gears and two templates to generate an infinite variety of colourful designs. Explore the mathematics that explains spirals and their appearance in art and nature.