[LIFETIME USE] It is made from unbreakable stainless steel. No need to harden and super easy to clean. Keep the original flavors and will not break or retain flavors. [BEST COMBINATION] This Yerba Mate cup is fantastic for enjoying delicious and healthy Yerba Mate. This mate shape, with a narrow base and a wide opening, the best shape for optimal yerba mate flavor and duration. [GET A FANCY, EYE CATCHER] Completely smooth, inside with no weld marks. Its curved shape makes it easy to grip while walking. [MANY USES] Our Mate gourds can be used indoors or outdoors, not only for Yerba mate, but also perfect for storing all such as wine, champagne, cocktails, beer, coffee, juice, tea. [SIMPLE TO CLEAN] This Yerba Mate tea cup set is incredibly convenient to use and even easier to clean. does not require curing use! Name: Double-layer tea cup with lid Capacity: 12 ounces Size: 7.8x5.8x11.5cm Material: stainless steel Color: black Package Contents: 2 * cup 2 * lid 2 * straw spoon 2 * straw 2