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Now, you can build your own high-performance coaster with the K'NEX RIPPIN' ROCKET™ Roller Coaster with Turbo Boosters and gravity-defying action! Assemble the coaster track complete with a 5-foot (152 cm) peak, sheer vertical drop, super-G loop, then fasten the rocket car onto the track and turn on the tooth-jarring Turbo Boosters. It's building fun and excitement for the whole family.
