K'NEX STEM Explorations Roller Coaster Building Set 24 and amazingly durable so you

and amazingly durable so you never lose a single shape

They build a sailboat

Use iron filings to make invisible magnetic fields visible

basket with fish

K'NEX STEM Explorations Roller Coaster Building Set 24 and amazingly durable so youYour child can explore STEM concepts while building a working roller coaster with K'NEX Education STEM Explorations Roller Coaster Building Set! The set will engage and energize middle school children as they boost their understanding of the STEAM (science, technology, engineering, art, and math) concepts associated with a real life amusement park ride. This K'NEX Education Set includes over 500 parts, plus a battery powered motor, allowing a single