Keep your beverages secure with these replacement leak stoppers designed specifically for 16 oz Thermos Funtainer stainless steel bottles. This 3-pack of white stoppers ensures you'll always have a spare on hand when needed. The sturdy cross-shaped design creates a reliable seal to prevent spills and leaks, making these perfect for active lifestyles, school, or work. These stoppers are engineered to fit perfectly with the bottle's flip-top lid mechanism, maintaining the thermal performance you expect from your Funtainer bottle. Easy to clean and install, these replacement parts will help extend the life of your favorite drink container. Compatible with all 16 oz Funtainer bottles, these leak stoppers are an essential accessory for anyone who wants to keep their beverages contained and their belongings protected from accidental spills.