This toy is made out of wood available at local hardware store. The toy consists of:
* two 4" diameter wheels
*9" long axle
*2 wheel caps
*connecting rod to axle
* string for pulling
I used a 4" hole saw to cut the wheels out of wooden board. The holes in the wheels for the axle was cut using a Forstner bit. The two end of the axle was rounded on the lathe. The diameter of the axle is 3/4"
We might not have re-invented the wheel but we had a lot of fun building this project. The kids got an opportunity to learn the fun of design and got to appreciate the basic building blocks of transportation.