Joinor Super Value Of 42PCS Stainless Steel Russian Icing Tips Piping Nozzles Reusable Pastry Icing Bags Nozzles Coupler Set (Includes: 37 Icing Tips + 1 Coupler + 4 Pastry Bags) Material: 304 stainless steel. Made of Food Grade material. It takes only one step to make a beautiful flower. Stylish and exquisite. Professional and reusable product, Easy to wash and handle Wildly use in cake, bakery, tray mats, party, hotel, etc. Using this small icing nozzles to decorate your cakes and cookies. Large Size:3.7cm(Bottom Dia)*4.2cm(Height)*2.4cm(Upper Dia). Quantity: Includes: 37 Stainless Piping Tips + 1 Coupler + 4 Pastry Bags