Material: Built from polished stainless steel, which offers long-lasting durability, corrosion resistance, and simple cleanup.Included Sizes: The standard stackable set usually comes with four essential volume measurements:1/4 cup (60 mL)1/3 cup (80 mL)1/2 cup (125 mL)1 cup (250 mL)Design: Features stamped measurement markings on the handles and a removable metal ring to keep the set securely nested together.