This item is a brass pilot brace step with a gold color finish, designed for HO gauge model railroads. It is compatible with Bowser and any other brand. This vintage accessory is a part of the Cal Scale brand, specifically the 190-603 model. It is suitable for use with PRR and any other locomotive model. The scale of the product is 1:87 and it is ideal for those looking for parts and spares for their model trains.