About this item Fashion Design: The silicone cover of our 40-ounce Stanley Cup has a unique storage function. Open the small lid and you will find a mirror and storage groove on the back. You can put your jewelry in it before going out, and you can also hang your keys on the bracket. The internal mirror allows you to touch up your makeup at any time, solving practical problems for you Perfect Match: Designed specifically for the 40 oz Stanley Quencher and other tumblers with an inner diameter of 4.5in, our replacement tumbler lid is the perfect fit. Enjoy a seamless drinking experience without worrying about leaks or spills Effective Dust Protection and Insulation: The snug fit of our Silicone Lid ensures effective dust protection, keeping your drink clean and refreshing. Additionally, it improves the insulation of your drink, allowing you to enjoy your favorite beverages at the perfect temperature, even when outdoors Versatile and Practical: Our Silicone Lid for 40 Oz Stanley Cup not only enhances the functionality of your tumbler but also adds versatility to your daily routine. With its easy-to-use flip straw and reliable construction, this lid is a must-have accessory for anyone on the go. Enjoy your favorite beverages with confidence and convenience Fits Perfectly: Designed specifically for Stanley 40oz Quencher Tumblers, our silicone lid is threaded to ensure a secure and perfect fit in the mouth of your cup. Additionally, it comes with a straw, providing you with a complete and hassle-free drinking experience. › See more product details