colorful magnetic activity guide included easy click and connect system PowerClix, the 3D Building System from Guidecraft, lets you explore and build endless models with the easy click 'n connect system. Super-strong magnetic force creates a quick connect for fast, simple and powerful 3D modeling. Build bridges, skycrapers, animals and more. Colorful translucent plastics and unique geometric shapes and extender rods allow for open-ended, creativity-inspiring constructions. The PowerClix Activity Guide gives young builders step-by-step instructions on how to create a variety of models while teaching them the basics of science, construction and engineering.