Design Kit for Inventors, Students, and Engineers Product Description: Flash of Genius 200-page book, with professional template, ruler, and packaged large eraser. Subjects include chemical bonds, materials science, manufacturing processes, intellectual property law, and more. Product Details: Timely Shapes Template 4”x7”, flexible Westcott wave ruler and Westcott packaged large eraser Flash of Genius 200-page book ISBN: 978-0-9882963-0-5 Printed in the U.S.A. Crosswise Publishing, Pepperell, MA Product Benefits: Flash of Genius helps inventors develop their ideas into working inventions. Timely shapes template for drawing shapes for projects. Massachusetts Residents Please Note: A 6.25% sales tax will be applied at checkout.