Whether you're icing cakes or piping mashed potatoes onto a homemade pie, MasterClass's 40 cm (15½") reusable piping bag helps you achieve a professional look. The inner lining ensures a smooth and even flow for perfect results every time. Made from 100% cotton with a washable interior, this piping bag is designed for repeated use. It also comes with a 12-month guarantee from MasterClass.