Synthetic Chain Guard is an exclusive 100% synthetic bike chain lube Special surface active formula reduces rolling resistance of drivetrain and improves shifting performance Deep chain penetration ensures quiet operation, protects drivetrain under load and extends chain life by shielding it from the elements - dirt, grime and water Waterproof and ideal for use on both short and long rides 4 oz Squeeze BottleUPC/EAN/GTIN: 851211003560