Time to defy gravity. Your kids will love building and then blasting off the K'nex Hyperspeed Hangtime Roller Coaster. An inverted blaster motor launches the hanging coaster car on an out-of-this-world adventure through 18'L of track. From K'nex.
- Includes 628 K'nex pieces
- Ages 9 and up
- Requires 3 C batteries, not included
- Approximate measurements: Roller coaster 2-1/2'H; Track 18'L