13.2mm 0.519inch AISI440c Stainless Steel Balls for Roller Skates 9.43G Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：12.7mm 1/2" AISI440c Stainless Steel Balls for Drawer Slides 8.354G Next：2.0mm 0.078inch AISI440c Stainless Steel Balls for Conveyor 0.032g
