Uploaded July 2015 | Updated September 2026, 1 day ago

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Get ready for a gravity-defying adventure with the Crossfire Chaos Roller Coaster Building Set! Build with over 500 K'NEX pieces like rods, connectors and track. Use the rubber band powered slingshot launcher to send the silver coaster car twisting and turning through over 18 feet of swirling, non-stop action! Plus, download exclusive instructions to build an incredible 2nd roller coaster! All K'NEX rods and connectors are made in the USA! Ages 9+

Features:
Includes 500 pieces
Slingshot launcher
18 feet of track
Silver coaster car
Ages 9+
knex.com/shop/17811/crossfire-chaos-roller-coaster-building-set