Track is 12 pieces of Lehmann No. 1100 R=600mm from 1988. It forms a complete circle. I do not know if the smoke function works, however. Comes only with what is pictured. Items are from a smoke free home. See photos for condition and/or measurements. If you require additional photos or measurements, please let me know. Feel free to ask any questions you might have prior to purchasing and I will do my best to answer them!