Cake Boss Decorating Tools Cake Icer Tip with Icing Bags This tip set includes the 789 extra large decorating tip to quickly coat cakes and cake layers with an icing layer; hand washing recommended Icing tip 789 features an opening with a flat edge and a serrated edge for versatility and convenience Five 18-inch clear icing bags made of strong, sturdy plastic are included in this cake decorating set (no coupler required) With the transparent plastic decorating bags it's easy to see how much frosting is left; cleanup is quick and easy, as the bags can simply be disposed Quality Assurance Guarantee ensures that these Cake Boss Decorating Tools work great with many other items in the Cake Boss collections