CNC Machining Grade:Gr5 Treatments: Polished,Anodizing(Blue,Gold,Red,Black) Titanium Ti Alloy Stem Headset Bolts Kit,Titanium Ti Alloy bicycle partsCNC MachiningGrade:Gr5Fit:HIGH QUALITY TITANIUM BOLTS,WILL FIT mostly stemTreatments: Polished,Anodizing(Blue,Gold,Red,Black)