Replacement stopper for classic Thermos models. Compatible with Classic Vacuum Insulated Wide Mouth Bottle (1.1 QT, 2 QT), suitable for water, mate, coffee, tea, and other beverages. High quality: Stopper made from food-grade materials, meeting high-quality standards. Features silicone rings to prevent leaks, ensuring a strong seal. Each stopper is tested for durability and reliability, safe to use with no unpleasant odor. Anti-leak lid: Designed specifically for stainless steel vacuum bottles, allowing secure placement in backpacks without spill concerns. Twist-and-pour function enables easy pouring without removing the stopper. Ideal for camping, travel, RV use, and outdoor activities. Easy to clean: Vacuum bottle stopper is reusable, simple to clean, and easy to replace. Smooth, seamless design allows for quick hand washing with water. Not recommended for dishwasher or microwave use. Color: As shown Material: Plastic Package includes: 1 x bottle stopper Note: Light reflection and display differences may cause slight color variations between image and actual item. Measurement tolerance: +/- 1-3 cm.