This Lid Fits the YETI 14 oz. Mug, 26 oz. Cup, 30 oz. Tumbler, 14 oz. Stackable Mug, 30 oz. Stackable Cup, 35 oz. Straw Mug, 42 oz. Straw Mug Magnets also makes for easy cleaning - pop the MagSlider off, rinse, dry, and return it to the Lid The magnet on the MagSlider Lid adds a barrier of protection for keeping drinks contained, please note - this magnet component is not leakproof and will not prevent spills The Lid is crystal clear lid so you can always see if you're in need of a top off The MagSlider Lid is spill-resistant, shatter-resistant, and BPA-free. NOTE: This is for the Lid ONLY Rambler Sold Separately