Indian Chief Classic 1:87 HO scale, 30 mm length. For best result print with SLA or any resin printer. To print with an FDM printer you should size the object up to 9cm or bigger for good results. All my objects have printed many times successfully in different sizes. (1:120 TT, 1:87 HO and some @1:160 N) Due to the size of the models, the printing cost is minimal and the selling returns are good. For further questions or requests, please contact me.