Progold blast off degreaser progold blast off degreaser quickly cleans precision bicycle parts with no scrubbing immediately strips away sticky grime and removes caked on debris with ease blast off dries quickly with no water rinsing and leaves behind no oily residue blast offs unique sprayer deep cleans and flushes dirt grime and grease away restoring cogsets derailleurs and chains to like new condition also contains a corrosion inhibitor to prevent flash rusting