Professional Silicone Pastry Bags: Compared to other products, ELK's piping bags are made of 60HA elastic silicone, which is the perfect material for piping head sets. The slight elasticity ensures its reusability, allowing viscous liquids to flow smoothly inside. Even if you knead a thick batter with it, it won't blow out. Its high elasticity means that all the squeezing effort you make is transferred to the bulging sides as it stretches, rather than forcing frost on the bottom. Say Goodbye to Colored Residues The smooth interior of the pipe set makes frosting come off easily after washing with warm water. When making cupcakes, cookies, breads, bright icing is really a good option that won't leave a colored residue like other cheap pastry bags. You just need to turn it inside out and wash it with warm soapy water. The slightly textured non-slip exterior makes it more comfortable to hold and easy to use. EASY SWITCHING PIPING TIPS: The converter is not edged during extrusion and can easily switch icing bag tips without emptying the icing or changing the piping bag. This definitely helps with cake decorating with different patterns. Cake Decorating Supplies Include: 2 Pastry Bags & 6 Stainless Steel Frosting Tips, 2 Standard Converters, 2 Silicone Rings, 3 Cake Spatulas. BAKE LIKE A PRO: The icing piping bag is perfect for making cupcakes, cakes, breads and cookies, and other different desserts. Great for everyday baking, professional baking, and perfect for parties. Imagine other people complimenting your cakes and desserts for their enticing looks.