Customized Steel Ball in Various Grades Stainless Steel Ball Weight 1/8 to 3/8 Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre:10.5mm 0.413 Inch AISI440c Stainless Steel Ball for Seams, Medical Application Valves 4.721g Next:AISI 304 Stainless Steel Beads for Seams Medical Application Valves 3.175mm 3.968mm 4.762mm