These cake decorating tips are petal tips made of fine stainless steel,because of this ,they are durable and of high quality.Use these petal tips you can create a beautiful assortment of flowers for your next birthday or wedding cake.These tips can help you to make roses,rosebuds, daisies, pansies and apple blossoms with ease. Seamless welding. Have passed SGS and FDA testing. Easy to keep clean and use. Highly corrosion resistand.