Reveals how bicycles evolved from two-wheeled toy horses into the high-tech, high-speed creations of today; introduces cycling's greatest heroes; and provides information on bike maintenance and repair.
Presents color-illustrated instructions for making six gadgets, including a flashing key chain, a doorbell, a bouncing animal, a secret code machine, a quiz game, and an alarm box.
Presents color-illustrated instructions for making five toy and game gadgets, including flashing jewelry, a spy camera, a box and sunglasses that light up, and a "Buzz Off" game.
