This is a 4.56oz Bottle of Smoke Fluid from Bachmann.              
                                                                               
FEATURES: Plastic compatible                                                   
          For use with all smoking locomotives                                 
                                                                               
INCLUDES: One 4.56fl.oz.(135mL) Bottle of Smoke Fluid                          
                                                                               
REQUIRES: Locomotive with smoke capability                                     
          Adding 15-20 drops of fluid into empty smoke unit