YETI Rambler Medium Clear Magslider Lid is designed to securely seal your YETI drinkware, preventing splashes and spills while you are on the move. This innovative lid provides an extra layer of protection to keep your beverages contained, while also helping to maintain the temperature by preventing heat or cold from escaping. Featuring a magnet that slides smoothly for easy opening and closing, it both convenience and functionality. The medium-sized lid is compatible with a variety of YETI products, including 10-ounce lowballs, 10-ounce mugs, 24-ounce mugs, 16-ounce pints, 20-ounce tumblers, and 25-ounce straw mugs.