There is a whole series of small puzzles, calle Woodkis. All are mechanical with gears and other moving parts. The MINI BICYCLE is one of our vehicle puzzles. Once assembled, the bicycle tires spin around.  Perfect for the bicycle hobbyist in your life. 82 pieces, no glue required, all materials included in the kit. A great collectible and can also be used for decoration as well as fun to play with for your little ones.