Developed by veterinarians, Esbilac Nursers are designed to promote natural feeding. Made to duplicate the milking action of mother. The specially designed nipple assures natural sucking action. The nipple is constructed of durable yet flexible rubber, so it is readily acceptable. The nipple is thick enough to withstand even the sharpest teeth, and the bottle is durable. In fact, the entire nurser can be sterilized for reuse in an autoclave or boiling water. Handy graduated markings help make feeding measurement easier. They help control the risk of overfeeding or underfeeding. The Esbilac Nurser provides meals for: dogs, cats, hamsters, ferrets, guinea pigs, raccoons, rabbits, squirrels, beavers, mink, monkeys, or other pets.