Professional-quality tips for decorating cakes, cookies and pastries. Precision-crafted of stainless steel for exceptional durability/life time guarantee. The larger the tip number, the larger the opening. Use with buttercream, royal icing, whipped cream and more. For enhanced control, versatility and neatness, use tips with its compatible Coupler (sold separately). Coupler allows the decorator to change similar sized tubes without emptying the contents of the Pastry bag. Works with any kind of pastry tube, including folded parchment, canvas and plastic. Rust Free ✓ Life time Guaranteed ✓ Carefully Crafted ✓ Seamlessly Manufactured ✓ Extremely Durable/Non-Malleable ✓ Great Performance/Better Results ✓ No : 2A Bottom Diameter. : 36m Internal Diameter of top. : 18mm External Diameter of top : – Width : –2.5CM Length : –2.5 Height : 49mm Material : Stainless steel