Perfect Fit Design:Our Stanley 40 oz flip straw lid is specifically crafted for the Stanley 40 oz Quencher Tumbler and the 40 oz Stanley ProTour. Not compatible with Stanley IceFlow. This replacement lid offers a seamless, secure fit for the handled 40 oz tumbler, ensuring a stable drinking experience every time. Versatile Compatibility:Our stanley flip straw lid is suitable for a wide range of beverages,including juice, milk, tea, and water.providing versatility and convenience for stanley cup,making it ideal for various situations 100% Leakproof for On-the-Go Life：Precision-engineered seal ensures no spills even when inverted. Perfect for commuting, gym, mom life—no more wet bags or car cup holders! Safe and Durable Materials:Our replacement flip lid is made from high-quality food-grade plastic,which is durable and odor-free,blending practicality with environmentally conscious design, making them ideal for everyday use Comprehensive Accessory Set：Comes with 2 leakproof lids of 2 sturdy straws—perfect for spares, family or gifting. Cream color matches Stanley’s classic macaron colors for a stylish look! Reusability: Reusable Material Type: Plastic Additional Features: Leak-proof, Spill-proof Product Recommended Use: Travel, Home Built-in Media: Lid, Straw Product Specific Use: Cold Drinks, Hot Drinks Item Quantity: 2 Flip Top Straw Cup Lid for Stanley 40 oz Replacement Straw Lid Made of high-quality plastic, durable and reliable, it provides a spill-proof and splash-proof experience in your daily activities, the 40 oz replacement lid flip top straw for Stanley is designed to prevent liquid leakage. Once firmly fixed, it ensures leak-proof performance, don't worry about these spill-proof straw lids. 2 replacement lids, 2 sturdy straws, this is a complete set