For bleeding brake line systems, changing brake fluids without removing the wheels, and bleeding coupling systems. Easy opening and closing of the brake nipple thanks to a special hinge ratchet. Contains: (Qty) (1) bleeder valve ratchet, (1) short 10 mm socket, (1) short 11 mm socket, (1) long 10 mm socket, (1) long 11 mm socket, (2) short rubber hose, (2) long rubber hose, (1) 90-degree universal adapter, (1) silicon hose.