The cup is made of 100% food-grade aluminum, ensuring it is non-toxic and safe for a variety of beverages. The aluminum structure is sturdy and durable, not easy to deform or break, and suitable for long-term use. This beer mug roll-top aluminum cup is not only practical but also environmentally friendly. It combines modern design with high-quality materials, making it a versatile beverage container for any occasion. Whether you take it to outdoor activities or use it at a family gathering, this aluminum cup can provide you with the best drinking experience.