Replacement stopper for Stanley bottles. Compatible with Stanley classic models, including Stanley Classic Vacuum Insulated Wide Mouth Bottle (1.1 QT, 2 QT). Suitable for use with water, coffee, tea, and other beverages. Made from food-grade, BPA-free material, meeting high safety and quality standards. Includes silicone rings for leak resistance and secure sealing. Each stopper is tested for durability and performance, with no unpleasant odor, ensuring safe and reliable use. Leak-resistant design allows for worry-free transport in backpacks or bags. Twist-and-pour function enables easy pouring without removing the stopper. Ideal for camping, work sites, RV travel, and other outdoor activities. Easy to clean with water; not recommended for dishwasher or microwave use. Smooth, seamless design for convenient maintenance. Color as shown in image. Material: plastic. Package includes: 1 x bottle stopper. Product images may show slight color variation due to lighting and screen settings. Size may vary by +/- 1-3 cm.