Build your own high performance coaster, and then bring it to life with two turbo boosters and gravity-defying action. Assemble the coaster track complete with a 5-foot peak, sheer vertical drop and super-G loop. Fasten the rocket car, and then hang on as you approach the point of no return. This cool coaster kit truly does "build excitement" for the whole family. Includes 1,058 K'Nex pieces and over 25 feet of track. Requires 6 "C" alkaline batteries (not included).