[LIFELONG USE]It is made from unbreakable stainless steel.No need to cure and super easy to clean.Double-wall design keep the outer wall cool at all times,you don't have to worry it scalds your hand when gripping it.Keep original flavors and 'tbreak 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-CATCHING]Completely ,inside no welding marks.It's curved design makes it while walking. [SO MANY USE]Our Mate gourds can be used indoor or outdoor,Not only for Yerba mate,But also perfect for storing any drinks such as wine, champagne, cocktail, beer, coffee, juice, tea. [SIMPLE TO CLEAN]This Cup Set is incredibly convenient to use and even easier to clean. doesn't require curing before use! Name: Double-layer teacup Process: The bottom is narrower and the opening is , maintaining the best croton mate flavor and duration Internal mouth diameter: 7.8cm Capacity: 8 ounces colour: black Material: stainless steel Size: 8x11cm Package Contents: 1 x cup 1 x spoon straw 1 x straw 1 x cleaning brush Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.