Perfect Fit for Stanley 40 oz Quencher Tumblers: This replacement flip lid is specifically designed for Stanley 40 oz Quencher Tumblers with handle, ensuring a snug and secure fit every time. Leak-Resistant Dual Slider Design: Features a reinforced lid with a dual slider screw-in structure (non-magnetic) that helps keep leaks and splashes contained, even during bumpy commutes or travel. Durable PET Plastic Construction: Made from high-quality PET plastic that is tough and not easily broken. Built to withstand daily use and accidental drops. Easy to Clean by Hand: A Quick Rinse Does the Job. No complicated cleaning required. Just a simple rinse gets the lid clean, making it very convenient for everyday use. Slider Removes Easily for Thorough Cleaning: Simply rotate the slider on the back 90° to detach it from the lid. This allows you to clean every part easily with no hard-to-reach spots. Soledea 2 Pack 40oz Replacement Lid for Stanley Quencher, Stronghold Lid Spill Proof Splash Resistant Tumbler Lids for 40oz Stanley Cup Accessories