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25 Model Ultimate Building Set
Build anything you can imagine for a year with the 25 Model Ultimate Building Set!
Chompster Building Set
Stomp, Chomp, Stomp, Chomp - Watch these creatures come ALIVE with new Beasts Alive® Building Sets from K'NEX!
Combat Crew 5-In-1 Building Set
Build your artillery and establish your army with the Combat Crew 5-in-1 Building Set!
Education Motor Pack
Motorize your K'NEX models to make them more realistic with these two battery-powered motors. ("AA" batteries not included). Turn concept models into "Technology at Work".
Extreme Sports Building Set
Cool extreme sports builds - including a hang glider, jet skier, surfer and more! 10 building ideas! 250+ pieces - all Classic K'NEX pieces. Made in USA.
Extreme Sports Building Set
Cool extreme sports builds - including a hang glider, jet skier, surfer and more! 10 building ideas! 250+ pieces - all Classic K'NEX pieces. Made in USA.
Fun On The Ferris Wheel Building Set
Ride all the rides with Emily and her bear, Cocoa, with the Fun on the Ferris Wheel™ Building Set from Mighty Makers®.
Hailey's Star Gazing Adventure Building Set
Gaze off into the night sky with Hailey, and her bunny, Stella, in the Hailey's Star Gazing Adventure Building Set from Mighty Makers®!
Insectra Building Set
Stomp, Chomp, Stomp, Chomp - Watch these creatures come ALIVE with new Beasts Alive® Building Sets from K'NEX!
Inventors Clubhouse Building Set
Invent anything you can imagine with Emily and Audrey in the Inventor's Clubhouse™ Building Set from Mighty Makers®.
Jess' Jammin' Garage Building Set
Rock out with Jess and her gerbil, Pi, with the Jess' Jammin' Garage Building Set from Mighty Makers®.