Portable foldable design: - The dog water bottles are covered 5.12" x 3.15", and the trough can be directly taken out up to 9.5". It can hold 300ml water which is good for small pets. The compact size makes the dog water dispenser convenient to carry or put in the bag easily. What's more, there is a string on the dog travel water bottle, you can hang it on your wrist wherever you go. One key for waterproof:- Don't worry water leaks from the dog water bottles for walking, there is a rubber ring inside the dog water bottles. More than that, the bottle is designed with a button to lock, which prevents water leaking from the dog water dispenser. To unlock and press the button, water can be poured from the bottle, it's a super simple yet useful design. Safe BPA Free Material:- The portable dog water bottle is Made of food-grade PC ABS material, BPA free, and pets can use the dog travel water bottle without worrying about health. Besides, the dog water bottle is also easy to clean. In summary, it is safe and durable, ideal for your pets. Suitable for various pets: - The trough design is large enough for small dogs or puppies. The dog water bottles are not only suitable for dogs use, but also for other pets like cats etc. > Easy to use: - The compact and convenient design makes the dog water bottle an ideal and useful gift for pets, it's not only for travel but also for daily use. Just press the key to pour water, and don't worry about wasting water, because it can also flow back into the dog's water bottles when the pets have finished drinking. The dog travel water bottle is easy and convenient to use, pets can drink clean water anywhere.