Calf-Mate Nipple Pails are made of tough thick-sided Fortalloy a poly/rubber blend that resists the effect of heat cold oils chemicals fertilizers weather strong detergents soaps and acids. Heavy-gauge galvanized steel fittings and bracket and four aluminum rivets attach the bracket firmly to the pail. With no corners to trap dirt and no seams to split feeder offers unmatched durability in the calf pen where only the best pails will do. Complete with black rubber nipple and polyethylene check valve. Also available in white. White 1-1/4 lb.