Get ready for slithering fun with the Cobra's Coil Roller Coaster Building Set from K'NEX! You can build with over 200 K'NEX parts & pieces including rods, connectors and track to create this slingshot powered serpent that sends the coaster car hurtling through over 2.7m of heart-pounding thrills! Then, download exclusive instructions to build an incredible second model, the Rattlesnake Rush! Recommended for ages 7+
