Ever wanted to construct and launch your very own working helicopters, boats and even rockets? Then Zap! Extra Zoomers is for you! Bursting with everything you need to create your own zippy zooming machines, this kit contains a 48-page book with easy-to-follow step-by-step instructions and clear diagrams. With Zap! Extra Zoomers, you can construct and set in motion 13 different vehicles: cars, boats, rockets and other amazing propelling machines. It also includes simple-to-understand explanations of how they work. The sky is no longer the limit!