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K'nex Thrill Rides Wild Whiplash Coaster Building Set - $20 (Keller)
Rosewood Dr. near Keller Smithfield
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just as good as Lego Trio or Lincoln Logs and not to mention Tinker toys
Build a WORKING motorized roller coaster over 0.5m tall!
Creepy Carnival theme with special graphic panels and stickers for the coaster car
580 parts, including over 14 feet of track and a motorized chain lift
Includes easy-to-follow, step-by-step building instructions plus downloadable instructions for a 2nd coaster
Ages 9+