Introducing the 500ml Innovation Design Vacuum Stainless Steel Beer Mug With Opener by our factory. Crafted from high-quality stainless steel, this beer mug boasts vacuum insulation that effectively keeps your beverage cold for longer periods. It features a unique design that includes a built-in bottle opener, ensuring you won't have to search for one while enjoying your favorite drink. With a large 500ml capacity, this mug is perfect for parties or relaxing on the weekend. Purchase with confidence knowing that this product is created by our factory, ensuring the highest level of quality and attention to detail.