Build your very own wooden microscope with 100x zoom by following the easy step-by-step instructions. A fun way to learn about the world that can barely be seen with the naked eye. Learn about the concepts of Lenses and Refraction along the way. Trusted by parents and loved by kids in 30+ countries. Every Smartivity toy goes through months of extensive research and testing before launch; carefully crafted by a team of toy designers, and tested by children, parents, & STEM experts.