Weather-resistant, wide-mouth bottle is easy to fill and clean. Features a stainless steel tube ideal for various small animals. Uses vacuum seal technology to prevent leaks. BPA-free

8 Ounce: Features a 3/8 inch tube. Best for hamsters, rats, mice, dwarf hamsters, small birds, and other small animals.
16 Ounce: Features a 3/8 inch tube. Best for guinea pigs, rats, ferrets, and small rabbits.
32 Ounce: Features a 7/16 inch tube. Best for rabbits, ferrets, and other similarly-sized small animals