Come and Check Our Branding Solutions.It is made from unbreakable 304 18/8 food grade stainless steel. No need to cure and super easy to clean. Double-wall design keep the outer wall cool at all times. It can be used indoor or outdoor, not only for Yerba mate, but also perfect for enjoying any drinks. This cup has a narrow base and a wide opening, the best shape for optimal yerba mate flavor and duration. You can customize your logo, and the quantity is large. Pls check inventory and detailed info before placing your orders.