Cake Decorating Tube Tip 866 - Add fine, deeply-grooved icing patterns to your cakes, cupcakes, pies, and more with this Ateco 866 1/2" french star 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 french star, tip, you can create shells, stars, flowers, and scalloped designs. Plus, its medium size is perfect for icing confectionary creations quickly and efficiently. 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 sized pastry tube for the job will enhance your presentation to draw patrons' attention to your display cases and plated desserts. Overall Dimensions: Opening: 0.58"