Upgrade your favourite 40oz tumbler with this premium Flip Straw Lid Replacement, designed for a secure, leak-resistant fit. Compatible with Stanley 40oz tumblers, this reusable lid features a convenient flip straw for easy sipping on the go while helping prevent spills and splashes. Made from durable, BPA-free materials, it is perfect for everyday use at home, work, the gym, or during outdoor adventures. Features: Compatible with Stanley 40oz tumblers Spill-proof and splash-resistant design Built-in flip straw for convenient drinking Reusable and eco-friendly BPA-free, food-grade material Easy to clean and dishwasher safe Ideal for travel, office, sports, camping, and daily use