Material: 304 high quality stainless steel. Made of food grade material, created using a seamless welding process. The sockets are made of durable stainless steel, they will not rust, dent or tarnish. . Easy to use and clean: just a little pressure on the pastry bag, you can create beautiful flowers. With a bit of clean brush, to make the tips cleaner for you. . Multiple shapes: Ideal for making pretty swirls, rosettes, ribbons, webs, leaves and other shapes with just a few of the tips included in this set. There are several shapes available for all tastes which is great. . Easy To Use: The assembly is very simple: Choose a pocket and a sleeve of the corresponding size Put the sleeve in the pocket Slide the inside screw into the pocket to push the sleeve Screw the outside screw through the front of the sleeve pocket. . 12 month warranty: We provide 1 year warranty for FantasyDay cake decorating nozzles. If you have any problem with the products, contact us directly. .