Puzzle Track contains 19 total pieces: 2 Motorized L.E.D. light vehicles (School Bus & Fire Truck) & 17 pieces of plastic puzzle track. There's no wrong way to assemble, put all 17 puzzle track pieces together. Challenge yourself by assembling the puzzle tracks to form the correct illustration or simply put them together in any order and watch as the vehicles illuminate the pathway! Each vehicle requires 2 AA batteries (not included). Ages 3-Adult.