●Overall, The Brake Oil Clutch Bleeder Hose Kit With Built-In 12 Point Wrench And Check Valve Simplifies The Process Of Bleeding Brake And Clutch Systems, Making It Easier To Remove Air Bubbles And Maintain Proper Fluid Circulation, Resulting In Improved Braking Performance And Clutch Operation. ●Include7, 8, 9, 10, 11,12 Mm Brake Oil Clutch Bleeder With 12 Point Wrench And Check Valve.