... ballGrades: G10 ~ G1000 Size: 0.6mm-250mmMaterial: carbon, stainless, chrome application:wheel, caster, slider, bearing,bicycle, motorcycleOEM is acceptableChrome steel ballChrome steel ... -180mmG10-G1000HRC>58AISI 10850.8mm-180mmG10-G1000HRC>58Material: carbon, stainless, chrome application:wheel, caster, slider, bearing,bicycle, motorcycle OEM is welcomeHUARI Products ...