Clear plastic makes it easy to view water level. Features stainless-steel ballpoint tube and no-leak seal design to keep your pet's water clean and housing dry. Includes metal hanger for attaching to wire hutch, fence, or aquarium. Perfect for guinea pigs, ferrets, and other small animals and reptiles.

8 Ounce - 2 inch-diameter bottle holds 8 ounces (1/2 pint).
16 Ounce - 2.5 inch-diameter bottle holds 16 ounces (1 pint).
32 Ounce - 3 inch-diameter bottle holds 32 ounces (1 quart).