Cake Decorating Tube Tip 403 - All your tasty treats will look professionally delicious with this Ateco 403 U-shaped ruffle pastry tube! Made of durable stainless steel, this tube is rust-resistant and designed to withstand repeated use without bending out of shape. Featuring a U-shaped ruffle tip, this tube is perfect for creating ribbons, bows, scallops, and other special effects! Perfect for adding elegant finishing touches on your most popular desserts, this pastry tube is an essential addition to your baking tools. It is also compatible with the Ateco 402 coupler and Ateco 407 coupler using the 1" coupler ring, making it easy to switch tips without changing the pastry bag. Using the right style pastry tube for the job will enhance your presentation to draw patrons' attention to your display cases and plated desserts. Overall Dimensions: Opening: 0.78" Bottom Diameter: 11/16"