Replacement stopper for classic Thermos models. Compatible with Classic Vacuum Insulated Wide Mouth Bottles (1.1 QT, 2 QT), suitable for water, mate, coffee, tea, and other beverages. High quality: Stopper made from food-grade plastic material, meeting high-quality standards. Features silicone rings to prevent leaks and ensure a strong seal. Each stopper is tested for durability and reliability, safe to use with no unpleasant odor. Anti-leak design: Lid is designed for stainless steel vacuum bottles, allowing secure placement in backpacks without spill concerns. Twist-and-pour function enables easy pouring without removing the stopper completely. Ideal for camping, travel, RV use, and outdoor activities. Easy to clean: Bottle cover is reusable, simple to clean, and easy to replace. Smooth, seamless design allows quick 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 variation between image and actual item. Measurement error allowance: +/- 1-3 cm.