K’NEX Education – STEM Explorations: Roller Coaster Building Set – 546 Pieces – Ages 8+ Construction Education Toy (Renewed)
November 7, 2019 - Comment
Product Features 546 ASSORTED PIECES -This K’NEX Education set includes 546 parts, plus a battery-powered motor, for a single child or a team of two to three children building a working roller coaster. Two additional models are also included in this set – a ramp and a half-pipe – which can be built one at
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