MATERIAL of food grade silicone and stainless steel, which are safe and harmless. Cake decorating kit provides everything for new beginners and professionals. Piping bag and nozzles sets to make your cakes look stunning, cake board turntable to make it easy to get a smooth finish with the pallet knife PACKAGE INCLUDED 12 piping nozzles, 1 piping bag, 1 converter BUILD TO LAST Our piping tips is antirust. Sturdy craftsmanship to never lose shape or break. with one piece forming technology, making them last for a lifetime. decorating set is ideal tool set to make piping, flowers, borders, and frosted accents on cakes, cookies and cupcakes on your own. CAKE DECORATING Closed Star, Open Star, French, Round, Plain, Leaf, Petal, etc. EASY TO USE AND CLEAN Just a little pressure on the pastry bag, you can create beautiful flowers.