WILTON-Decorating Icing. These plastic tubes of decorating icing contain 4-1/4 ounces. It's like having a filled decorating bag that is ready when you are! Tubes can be used with Wilton's Tip and Nail Set or Coupler Ring Set (each sold separately) and any standard size Wilton metal tip. Great taste! Ready to use. Available in a variety of colors: each sold separately.