A removable magnet helps seal your drink to keep splashes at bay while on the go. This lid fits your Rambler: 14 oz. Stackable Mug 30 oz. Stackable Cup 30 oz. Tumbler 35 oz. Straw Mug 42 oz. Straw Mug Seals Your Drink To Keep Splashes At Bay While On The Go. Keep splashes at bay and debris out with the Rambler MagSlider Lid — individually sized for YETI Mugs, Tumblers, Lowballs, and Stackable Pints. For each size, the smooth magnet offers a reliable sliding mechanism. Plus, the magnet is simple to remove for easier, more thorough cleaning, so it can stay in its prime and far outlast any other slider lids out there. This dishwasher-safe lid also adds a barrier of protection to keep coffee, water, wine, shandies — any drink you’re craving — contained while helping prevent heat or cold from escaping.