Classic Pet Products is thrilled to present three sizes of glass drinking bottles, with capacities of 175 ml, 350 ml and 750 ml. Crafted from recyclable, hygienic, dishwasher-safe glass, these bottles boast a strong metal drinking spout and lid unit that is chew proof. The Classic design, with a double ball bearing water retention / release system, ensures leak-free use. A carrot-shaped water level indicator lets you know when it’s time to refill while the capacity graduation on the back of the bottle is perfect for specific filling levels. The bottle attaches to a cage at two points with a sturdy spring clip and hook bracket. The 750 ml bottle is suitable for larger rabbits, guinea pigs, pigeons, and parrots, while the 350 ml bottle is perfect for smaller rabbits, guinea pigs, pigeons, and parrots. The 175 ml bottle is ideal for hamsters, gerbils, mice, and smaller birds.