Russian Piping Tips 15PC/SET Stainless Steel Cake Pastry Decorating Icing Nozzles, Create Frosting Flower Garden, Tulips Roses Create beautiful flowers with one squeeze! Easy to clean! 1 5/8" (4.13 cm.) tall, 11/16" (1.75 cm.) diameter top and 1 3/16" (0.48 cm.) diameter bottom Material: 304 stainless steel 100% food grade, FDA & LFGB approved