Perfect Compatibility - Tumbler adapter is designed to seamlessly compatible with stanley 40oz / 64oz quencher H2.0 flowstate tumblers. With our precision design, your tumbler and flavor cartridges can connect flawlessly Convenient To Carry - Adapter weighing only 0.3 pounds, our tumbler adapter allows you to take your favorite flavors anywhere. Perfect for the office, gym, outdoor adventures or car travel. This adapter transforms your water into your preferred flavor Easy to Use and Clean - No installation required. Simply attach the adapter to your tumbler, insert the flavor cartridges, and enjoy your customized drink in seconds. Crafted from sturdy polypropylene plastic and paired with a food-safe silicone ring. The product is dishwasher safe Leak Proof - A food-grade silicone gasket provides excellent sealing to ensure no leaks while drinking, allowing you to use it confidently. Enjoy a beautiful and healthy life Enjoy Drinking - Say goodbye to boring beverages and make drinking water more delicious, fun, & personalized. Upgrade your tumbler and elevate your drinking experience. Note: Bottle and lid are not included. Any references to these brands are for compatibility use only. If you have any questions about our tumbler adapter, please contact us and I will solve them for you as soon as possible Tumbler Adapter for Stanley to Flavor Cartridge, Compatible with Stanley Quencher H2.0 FlowState Stainless Steel Tumblers 40oz&64oz, BPA Free, Food Grade Silicone