Weather-resistant, ultraviolet-resistant polyethylene plastic makes this bottle ideal for outdoor use, but it works equally well indoors. Stainless steel ballpoint tube keeps your pet's water clean and housing dry. Extra-wide mouth accommodates ice cubes for keeping pet's water cool in hot weather. Includes metal hanger for attaching to wire hutch, fence or aquarium. Perfect for hamsters, mice, gerbils and other small animals and reptiles. 3 in L by 2-1/4 in W by 6-3/4 in H, holds 8 oz (1/2 pt).