This is a 4 ounce bottle of Finish Line 1-Step Cleaner & Lubricant. Finish Line's 1-Step(TM) is engineered for cyclists seeking a quick, one-step clean and lube formulation. As 1-Step flushes out contaminants and old lube, it leaves behind a clean new film of low friction lubricant. For cyclists on the go, 1-Step is the perfect choice for maintaining your bicycle's drivetrain. 1-Step is recommended for cyclists who take a minimalist approach to drivetrain maintenance. It is formulated with rust and corrosion inhibitors that provide ultimate protection in extreme conditions including coastal salt air. 1-Step does not compromise on its ability to reduce pedaling friction over long intervals, often exceeding 100 miles. Professional mechanics also use 1-Step to free gummed-up shifters and stiff cables. Check out the Finish Line Perfect Lube Chart.