Regular lubrication of bicycle chains addresses annoying squeaks and noises, and extends the life of the chain and drivetrain components. Formulated using PTFE and a proprietary blend of oils, Park Tool CL-1 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. Compatible with all bicycle chains. Also works great as general-purpose light lubricant for use on bicycle brake and derailleur cables and housing, spoke nipples, and derailleur and brake pivots.CL-1 FEATURES:- 4 fl. oz. (118 mL) bottle NOTE: Some painted surfaces can be sensitive to oil and grease. Clean off any excess oil or grease immediately. Test first on an inconspicuous area to see if it causes a stain or discoloration.