Features: Easy to use. Gently squeeze our dog water bottle and the bowl will fill with water. Release the squeeze to return water to the bottle. The total capacity of this bottle is 520ml. Whether you're out for a short walk or a long day hike in the mountains, this size fits perfectly in any bag or tote. It's important to keep pets hydrated whether it's going for walks, hiking, or car trips. Large diameter drinking trough, wide-angle opening, not stuck, more suitable for dog mouth structure, making it easier to drink water. Suitable for walking, riding, or hiking with your dog. Specifications: Material: Food Grade Silicone+HDPE Color: Cyan-blue/Rose Red/Blue Capacity: 520ml Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Portable Dog Water Bottle