Get ready for a gravity defying adventure with the Crossfire Chaos Roller Coaster Building Set!
Build with K'NEX pieces like rods, connectors and track. Use the rubberband powered sling-shot launcher to send the silver coaster car twisting and turning through over 5m (18 feet) of swirling, non-stop action!
Or download exclusive instructions to build an incredible second model, the Torpedo Twist coaster.
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