S.T.E.M.

The Sidewinder building block kit was designed by an actual roller coaster engineer is modeled after contemporary steel coasters.  It is constructe...

Designed by an actual roller coaster engineer, the Cyclone Roller Coaster building block kit is constructed for quick assembly and features an inge...

A follow-up to the best-selling original Robotics: Smart Machines kit, this version focuses on wheeled robots. Like the original, this kit also giv...