Why is designing products that meet rigorous safety standards an increasingly important skill - especially when it comes to products used by children? In this program we meet the product designer at one of the world's leading test centers, to find out about the different tests carried out on children's products. We also discover why calibrating equipment is so important and how clever design reduced costs and time to market. Trunki, the child's pull along suitcase, may have failed the BBC Dragon's Den test, but thanks to further testing and modification it's now taking the world by storm. Includes teacher support material.