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.
500 Micro K'NEX pieces
Click here and enter set code 52417 to download all the instructions for this set.