Children's Science Kit Make Your Own Clock no batteries needed just mud Learning & Development Toy

Make your own mud clock: this clock really works without any batteries! No Batteries? No problem! Think like a scientist and use this kit to power a digital clock with nature. Manufactured by Middlesex University UK. Contains digital clock with leads flower pots copper and zinc strips screw driver wire connecting blocks and detailed instructions. Great gift idea presented in gift box. Developed by Middlesex University in the United Kingdom!