Lixit Corporation SLX0855 Aquarium/Cage Small Animal Water Bottle, 8-Ounce Aquarium/cage water bottle, hangs like a bell Chew resistant design with rounded edges Great for mice, rats, hamsters, gerbils, guinea pigs, hedge hogs and other small animals Weather resistant polyethylene stainless steel double bell-point tube Non-toxic rubber seal; comes in 8-ounce capacity