PET-FRIENDLY WATER BOTTLE: Perfect size and easy to use. This pet-friendly water bottle delivers the perfect solution for your dog, providing easy access to fresh water whenever your best friend needs it. The food-grade silicone lid attachment becomes a flexible cup, making drinking time comfortable and refreshing! LARGE CAPACITY: Minimum fuss and maximum hydration! This large, 21oz water bowl bottle will keep your pet hydrated for walks of at least 3-4 hours, if not more. Whether you are out exploring on a long hike, or you are simply out for the morning walk in the park, this bottle provides all the refreshment your dog will need. COLLAPSIBLE DESIGN: Convenient and tidy. This product is sold with a carabiner clip, making it easy to attach to a bag, pushchair, or case. The silicone lid is both foldable and flexible, ensuring you can easily collapse it when not in use and store it away neatly until it is time for walkies again.