A chain lube from Park Tool, the leader in bicycle maintenance products. Using PTFE and a proprietary blend of oils, Park Tool Chain Lube works great in wet or dry conditions. It penetrates, reduces friction, prolongs component life, displaces moisture, and protects parts from rust and corrosion. Can also be used to good effect on cables, spoke nipples, and derailleur and brake pivots. 4 oz. / 120 mm Bottle.