Rigamajig system is the perfect playful approach to hands-on STEM exploration. Students follow their curiosity as they play and build, learning along the way. The combination of these two set will help students and encourages them to develop STEAM skills by designing, building, and witnessing their own creations come to life! This kit combines the Rigamajig Junior set of 160 parts and the Rigamajig Junior Spinning Tops set of 70 parts. .