Solar Rover-Eco Engineering
Place your solar rover on a smooth floor surface on a sunny day and watch it zip along, no batteries are required.
A desk lamp shining close to its solar panel would enable it to run indoors.
Contents: Chassis or vehicle base platform with rear axle in place, front axle, 4 wheels, motor with wire and worm gear installed, solar panel, 2 reflector panels and detailed instructions.
Required but not included: a small crosshead screwdriver, empty soda can.