Material: 304 stainless steel.Made of Food Grade material. It takes only one step to make a beautiful flower. Stylish and exquisite. Easy to wash and handle Professional and reusable product, easy to store and transport Wildly use in cake, bakery, tray mats, party, hotel, etc. Using this small icing nozzles to decorate your cakes and cookies. Large Size:3.5cm(Bottom Dia)*4cm(Height)*2.4cm(Upper Dia).