[LIFELONG USE] Made from unbreakable food-grade high-quality stainless steel material. No need to cure and super easy to clean. Double-wall design keeps the outer wall cool at all times, so you don't have to worry about burning your hand when holding it. Does not retain previous flavors and will not break. [BEST COMBINATION] This Yerba Mate cup is ideal for enjoying delicious and healthy Yerba Mate. The shape with a narrow base and wide opening is optimal for enhancing Yerba Mate flavor and steeping duration. [GET A FANCY, EYE-CATCHING DESIGN] Smooth interior with no welding marks. Its curved design allows for comfortable handling and portability. [SO MANY USES] This Mate gourd can be used indoors or outdoors. Suitable not only for Yerba Mate but also for storing various beverages such as wine, champagne, cocktails, beer, coffee, juice, and tea. [SIMPLE TO CLEAN] This cup set is incredibly convenient to use and easy to clean. No curing required before first use. Name: Double-Layer Teacup Process: Narrower bottom and wider opening to maintain optimal Yerba Mate flavor and steeping time Capacity: 8 oz Uses: Yerba Mate, coffee, water, milk, tea, juice, and other beverages Color: Black Material: Stainless Steel Size: 80.5 x 108 mm Package Contents: 1 x Cup 1 x Spoon Straw 1 x Cleaning Brush Only the above package content is included; other products are not included. Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement allowance is +/- 1-3 cm.