K’NEX STEM Explorations Gears Building Set - 143 Pieces (79318)

Introduce your child to STEM concepts early with the K'nex STEM explorations gears building set. This 143-piece set features assorted parts and pieces and lets kids build three fully functioning, geared models, like a crank fan, an egg beater, and a car window. And the building fun is just beginning, as kids can use their imaginations and build creations of their own with this set.