Replacement stopper for Stanley. Compatible with Stanley classic models thermos and Stanley Classic Vacuum Insulated Wide Mouth Bottle (1.1 QT, 2 QT). Suitable for use with water, mate, coffee, tea, and other beverages. Made from food-grade, BPA-free plastic meeting high quality standards. Includes silicone rings to prevent leaks and ensure a strong seal. Each stopper is tested for durability and performance, odor-free, and safe for everyday use. Leak-resistant lid design fits Stanley stainless steel thermoses, ideal for use in backpacks without spill concerns. Twist-and-pour function allows easy pouring without removing the stopper. Suitable for camping, job sites, RVs, and other locations. Easy to clean; hand wash recommended. Not dishwasher or microwave safe. Smooth, seamless design for simple maintenance. Color as shown. Material: plastic. Package includes: 1 x bottle stopper. Product image may vary slightly due to lighting and screen settings. Size may vary by +/- 1-3 cm.