These Cake Boss icing bags are the perfect partners for Cake Boss decorating tips. The Cake Boss Duo icing bag and coupler set includes a three part coupler, six icing tips, a tip cleaning brush, and eight disposable icing bags. Use them to make decorating easier. These are great for decorating Halloween cookies, wedding cakes and more. Use them for any decorating project that requires a variety of creams, frostings and fillings.