One key to lock water: One key to open and close, convenient for dogs to drink. Leak-proof, no water is wasted when traveling outdoors. You can hold the dog in one hand and feed the dog with water in the other hand. Large-capacity vial: This 75mm * 208mm water bottle can hold 550ml of water. It is small in size, easy to carry, and large in capacity, so there is no need to worry about the dogs having no safe water to drink when going out to play. High-quality materials: lead-free, BPA-free, PET+ABS, safe and durable, easy to disassemble and wash. Beautiful and durable: high-grade and exquisite bottle body color and design will bring a pleasant drinking experience to your pet dog. And the complete plastic ABS material is durable and more convenient outdoors. Happy trip to safe water: sports dogs love to drink water. Dogs who drink wild water are prone to gastrointestinal problems. If you drink too little water, dogs are prone to kidney stones. With this portable pet drinking bottle, you are no longer afraid that there is no safe dog to drink. Product description550ml water bottleTravelOutdoorCampingInconvenient to drinkWaste waterUnhealthy and unhygienicDrink waterEasy to drinkCar travelSimple one-key lock/start water, leak-proof, light and portable, suitable for short-distance to long-distance travel. Excess water can be returned to the bottle without wasting water. It is very convenient to travel when pets are thirsty.