• Stop Leaks for Good: These premium silicone Leak Stopper create a perfect airtight seal for both the lid and straw port of your bottle. Effectively prevents messy leaks and spills in water bottle, Maintain water temperature as much as possible
• Perfect Fit Guarantee: Precisely engineered to be compatible with Thermos Funtainer 16oz drink bottles. (Please compare with your original seals for size confirmation before installation). Easy to install—just replace the old, worn-out seals.
• Safe & Durable Material: These water bottle replacement parts made from 100% food-grade, BPA-free silicone. Flexible, odorless, tasteless, and resistant to deformation, ensuring long-lasting performance and Keep water temperature.
• Restore Like New Performance: Don’t replace the entire expensive bottle! Our replacement seals quickly restore the original leak-proof function. Ideal for fixing lids that have become loose or straw ports that no longer seal tightly.
• Great Value Pack of 6: Package Includes 6 sets seals (for both Lid Gasket and Straw Seal). Have spares on hand for multiple Bottles or for future replacement, making it a cost-effective solution for parents.