- Replacement lid for 40 oz cups: Specifically designed for Stanley's 40 oz cups, this lid ensures a snug and secure fit for the Traveller model with handle. - Leak-proof and dustproof: Engineered to eliminate liquid leaks, this lid provides reliable performance during use and storage. Say goodbye to worries about spills and splashes, keeping your beverages safe and secure. - Convenient flip straw design: Featuring an easy-to-use flip straw, this replacement lid allows for quick sipping, making it ideal for hydration on the go. Perfect for busy lifestyles, outdoor adventures, or gym sessions. - Comprehensive set: This package includes two replacement lids and two durable straws, enhancing your cup experience. A complete solution for those who value quality and convenience in their daily hydration routine. - Compatibility: Designed exclusively for Stanley 40 oz cups, ensuring seamless integration and optimal performance. - Material: Crafted from high-quality, durable materials that withstand daily use and maintain their functionality over time. - Use scenarios: Ideal for road trips, hiking, or daily commutes, this lid ensures you stay hydrated without the hassle of leaks. Perfect for sports enthusiasts or anyone seeking a reliable hydration solution during busy days.