4.5mm Carbon Steel Ball AISI1010-1015 Carbon Steel Ball for Bicycle and Automotive Components Ball 0.371g Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre:High Precision Ball Bearing 4.4mm 4.762mm Steel Ball Mr63 Mr63zz with Fan Price 0.347g 0.440g Next:AISI1010/AISI1015/AISI1055/Asi1085 Carbon/Hight Carbon Steel Ball for Freewheel 52-58HRC with Good Quality Furniture Bearings, Bicycle and Automotive Compon