Designed for Stanley Classic Bottles: This replacement stopper is perfectly compatible with Stanley Classic wide mouth vacuum insulated bottles, in both 1.1 QT and 2 QT sizes. It ensures a tight fit and maintains the temperature of your beverages, whether hot coffee or cold water, for longer periods.

Leak-Proof and Convenient: Equipped with a secure twist-and-pour function, this stopper prevents spills, making it ideal for travel, outdoor adventures, or daily commutes. Enjoy the ease of pouring drinks without having to completely remove the stopper, keeping your beverage temperature consistent.

Safe and Durable Material: Made from high-quality plastic and silicone, this replacement stopper is designed for long-lasting durability and safety. It is suitable for both hot and cold beverages and features a seamless design that is easy to clean, ensuring your drinking experience is always safe and enjoyable.

User-Friendly Installation: This stopper's simple screw mechanism allows for quick and easy installation or replacement without the need for tools. It is designed for efficiency and convenience, making it perfect for quick and hassle-free use.