Carbon Steel Ball for Bicycle 1/4" Cycle Steel Bal AISI1010-AISI1015 Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：10.319mm 13/32"High Polished AISI 420c 440c Stainless Steel Ball G10-G1000 Next：9.52/10/10.31/11/11.11/11.5/11.5/11.9/12/12.3mm Soft Carbon Steel Ball AISI1010-AISI1015
