Avid professional disc brake bleed kitprofessional bleed kit produced by avid to aid in the bleeding of their brake systemsfeaturesimproved sealing durabilitynew rotating metal hose fittingshigh volume hose with clamplonger lastingmust have for all mechanicsdot 51 fluid recommended not includednot compatible with rockshox fork bleed kitbuyavid spares from chain reaction cycles the worlds largest online bike store