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Make sure this fits by entering your model number. | This stem kit vehicle is fast, Furious, and powered by air! No batteries means non-stop fun. | Build your own air screamer and race your friends. Build it. Crank it. Watch it go. | Your screamer can blast over 164ft (50meters) at speeds up to 45 miles per hour. | Air provides the power one crank at a time with special safety valves in place so you can’t over pump! | Learn by doing. Perfect for future engineers ages 10+.