STIHL Woodcutter Bar and Chain Oil is designed for high-speed, heavy-duty cutting at a value price. Perfect for professionals, this oil keeps chainsaws running at peak efficiency. Formulated with base oils and additives, it helps extend the life of chainsaw bars, chains, and oil pumps - highly refined oils provide maximum lubrication, while concentrated tackiness additives ensure the oil adheres to the chain at high cutting speeds. Packaged as a case of 12 one-quart bottles.