You can build with over 200 K'Nex parts and pieces including rods, connectors and track to create this slingshot powered serpent that sends the coaster car hurtling through over 9 feet of heart-pounding thrills. Then, download instructions to build a second model, the Rattlesnake Rush.
- Get ready for slithering fun with the Cobra's Coil Roller Coaster Building Set from K'Nex
- 201 K'Nex parts and pieces
- Second model, Rattlesnake Rush, instructions found online
- Silver Coaster Car
- Recommended for builders age 7+
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