K'NEX : Education STEM Explorations Roller Coaster Building Set - 546 Pieces

Get your child familiar with STEM concepts while they build their own working rollercoaster with this 500-piece building set

Suitable for ages eight and up

Set also includes a battery-powered motor, which enables one to three children to build a working roller coaster

Also included are a ramp and a half-pipe, which can be built one at a time, and enhance the fun of this set

Two AA batteries are needed to run this set and are not included