Primary Function: It is a manual pastry tool designed to quickly shape and extrude consistent dough into decorative biscuits, spritz cookies, or petit fours.Material: It features a polished aluminum body with a robust stainless steel lever mechanism.Accessories Included: The set typically contains interchangeable patterned steel discs (usually 10 to 20 shapes) to vary your cookie designs, alongside plastic icing nozzles for decorating cakes and pastries.