Mega-Steam Baking Bread smoke fluid is a scented liquid designed for use with model train smoke units. The 2 oz bottle comes with a dropper top for precise application when filling your locomotive's smoke unit. The Baking Bread scent adds an atmospheric sensory detail to layout operation. Follow your smoke unit manufacturer's filling instructions and keep out of reach of children, as the fluid is petroleum-based. Features: 2 oz bottle with dropper top for easy filling Baking Bread scent Petroleum-based formula Designed for model train smoke units 7/7/26 cs