Cupcake Creations Icing Duets is a two color icing and decorating set. It comes with four 18" 2-compartment bags that allow you to pipe 2 different colors at the same time, four 12" 2-compartment icing bags, 6 different tips, 1 coupling set and an instruction sheet. Unique split coupler and nozzle with guides inside separate the icing as you decorate. The special coupler ring holds the nozzle outside the bag thereby allowing different nozzles to be easily changed on the same bag. Disposable bags for quick cleanup.