Designed to inspire with multiple builds and experiments. The Stem Explorations range of products is a lower priced introduction to our Machines range. The sets are a selection of our most popular builds and come with simple students experiments for each model. At a lower price they allow you to try out key areas of the K’NEX Education line or buy multiple low priced sets to teach larger classes. Sets suit 2-3 students working together as opposed to larger working groups.