The Zometool construction toy teaches geometry through model building, allowing anyone to create structures (platonic solids, spheres, other shapes) usingĀ plastic struts and connecting nodes (zome). This award-winning toys is used in classrooms and homeschools, but also at NASA and in universities worldwide for modelling chemistry, physics, and mathematical research.

The basic sets include the 3,4,5 symmetry struts, but the zome nodes can also accommodate alternate struts, the “green lines” that allow the construction of the regular tetrahedron and octahedron.