YETI Rambler Stronghold Lid, 30 oz. is designed to keep the contents of your cup secure, so you don’t have to worry about accidental spills. This innovative lid easily twists on and features a dual-slider magnet that helps contain leaks and splashes effectively. The magnet slides up and down to open and close the lid smoothly, providing convenience and reliability. Made specifically for YETI’s 30 oz. travel mugs, it a fit and enhances your drinking experience by keeping your beverage safe and secure. Model Number: