Introducing our new 30oz 40oz Insulated Stainless Steel Tumbler with Lid and Straw - the ultimate solution for your beverage needs! Crafted with precision in our factory, this innovative tumbler is designed to keep your drinks hot or cold for extended periods. Its durable stainless steel construction ensures long-lasting performance, while the included lid and straw offer convenient sipping on the go. With a generous 30oz or 40oz capacity, our tumbler is perfect for enjoying your favorite beverages anytime, anywhere. Experience superior quality and functionality with our factory-made stainless steel tumbler today!