Replacement stopper for Thermos. Compatible with classic Thermos models and Classic Vacuum Insulated Wide Mouth Bottles (1.1 QT, 2 QT), suitable for water, coffee, tea, and other beverages. High quality: Made from food-grade plastic material meeting high safety standards. Includes silicone rings to prevent leaks and ensure a strong seal. Each stopper is tested for durability and reliability, free of odors, and safe for everyday use. Anti-leak design: Specifically designed for stainless steel vacuum bottles, allowing secure placement in backpacks without spill concerns. Twist-and-pour function enables easy pouring without fully removing the stopper. Ideal for camping, travel, RV use, and outdoor activities. Easy to clean: Smooth, seamless surface allows for simple hand washing with water. Not recommended for dishwasher or microwave use. Reusable and long-lasting. Color: As shown Material: Plastic Package includes: 1 x bottle stopper Note: Light reflection and display differences may cause slight variations in color. Measurement tolerance: +/- 1-3 cm.