Milk Bar Calf Self Feeder is the easy way to give milk to calves that don’t require hand-feeding. Exclusive nipple design slows down gulping which prevents choking and also promotes salivation, which is essential for proper digestion and stomach development. Durable grey poly container hooks onto wire or one-by-four wood rail and the gravity-flow nipple requires no valves or tubes. Holds about 3 quarts. Wt. 1.5 lbs.