Introducing the 500ml Innovation Design Vacuum Stainless Steel Beer Mug With Opener, a must-have for beer lovers! Our factory produces high-quality stainless steel mugs that are designed to keep your beer cold for hours. The innovative vacuum insulation technology ensures your beer stays at the perfect temperature, while the built-in opener makes opening your bottles a breeze. The mug's sleek and stylish design is perfect for any social occasion. Made with durable and rust-resistant materials, this mug is perfect for outdoor adventures, parties, and barbecues. Get your hands on this amazing product today and enjoy your beer like never before!