stainless steel balls diameter:1/8" material:AISI1010 hardness:hrc58 used in bicycle,cars and so on we can supply all kinds of steel balls with best price ,quality and service.The steel balls application is in bearing ,castors,sprayers,scent bottles,iatrical instruments,automotive fittings,nursing bottles and so on.productsstainless steel ballsmaterialAISI1010size1/8"hardnesshrc58gradeG1000