Features: Easy to use. Gently squeeze our doggie water bottle and water will fill the bowl. Release your squeeze to return water back to the bottle. The total capacity of this bottle is 520 ml. If you're out for a short walk or a long day hiking in the mountains, this size fits perfectly in any bag or tote. It's important to keep pets hydrated whether it’s going on walks, hiking, or road trips. Large-diameter drinking for tank, wide-angle opening, not stuck, more suitable for dog mouth structure, making drinking water easier. Suitable for walking, riding, or hiking with your dog. Specifications: Material: Food Grade Silicone+HDPE Color: Cyan-blue/Rose Red/Blue Capacity: 520ml Package Includes: 1x Portable Dog Water Bottle 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.