This is a Tomix series N-gauge model train set that I purchased when my children were small. I have confirmed that the two train cars in the photo are operational on KATO-made rails (Unitrack). I am not very knowledgeable about model trains, so please feel free to ask any questions. Please note that this item has been stored by a non-professional, so it shows some signs of use. However, I don't see any major scratches or damage. I would like to sell this to someone who understands this. Thank you.