Designed for feeding lambs and kids. The soft and pliable Pritchard teat/nipple closely resembles the shape and feel of the real thing. Special patented flutter valve allows air to enter bottle. Screw on threads so it doesn't slip off. Ideal for goats, lambs, young foals and other farm babies. Natural feeling rubber nipple securely attaches to the bottle with a neck ring. Nipple stays in place and is easy to remove and clean.