1. Universal Design: Specifically designed for widemouth bottles with a diameter of 2.28 inches, the automatic nozzle cap ensures an airtight seal for effortless hydration. However, it does not fit standard or narrow bottles, guaranteeing a secure fit for your widemouth hydration needs. 2. Safe Material: Kids can safely enjoy their drinks with our automatic nozzle cap, made from dropresistant and upgraded PP material. No more worries about accidental drops or unpleasant taste. 3. Comfortable Drinking Experience: The enhanced soft nozzle provides the most comfortable touch to your lips every time you drink, while the improved ergonomic handle features a sleek design, allowing you to lift and tilt it effortlessly with three fingers, significantly reducing pressure on your hand. 4. Easy to Carry: Enjoy convenient hydration with our automatic nozzle cap, featuring onehanded drinking and a widemouth nozzle for liquid flow. It's easy to drink from and carry, making it for all your outdoor adventures.