The mechanical, motorized wooden kits is an ideal project for future engineers to learn how motors, gears and pulleys put things in motion. No soldering required. They actually move. Gear Drive Operation. This kit is supplied with pre-punched boards, gears, shafts, switch, motor, battery holder, and all necessary parts. Includes easy-to-follow instructions. Requires two (2) �AA� batteries, screwdriver, and long nose pliers. Not included. Recommended Age: 10 and Up