The Fine Scale Miniatures Pile Driver Jewell Series No. 1 HO Scale is a highly detailed commercial building designed for model railroads and dioramas. This unpainted structure, featuring a nautical theme, is made of wood, cardboard, and balsawood in a 1:87 scale. It is compatible with HO gauge model trains and is suitable for hobbyists aged 17 years and up. Made in the United States.