PME Cake Large Master Piping Nozzles, Decorating Tip, Set of 55Piping nozzles, also known as decorating tips, are small attachments used with piping bags to create various decorative designs with icing, buttercream, or whipped cream They are typically made of stainless steel or other food grade materials, ensuring they are safe for use with edible materials Easy to attach and remove from piping bags, making it convenient to switch between different tips during the decorating process Suitable for both beginners