Amazing stretchable magnetic putty that never dries out. Make putty magically move on its own. Explore the science of magnetism with a 16 page, full-colour learning guide. Quality-tested non-toxic formula is 100% safe for kids and adults. 100% satisfaction guarantee. For 129 years, national geographic has been a brand you can trust for scientific and educational excellence. What's in the box 1 x Magnetic Putty