Samix Stainless Steel 5.8mm Flanged Pivot Balls are a great upgrade to replace the stock plastic pivot balls included with your Axial model. Machined from stainless steel, these pivot balls offer increased durability and improved service life, combined with a precision fit. They are a direct replacement for the Axial AXI80018 balls used in axial M3 and M4 rod ends, and fit the Traxxas TRA5347 rod ends as well, making them compatible with a variety of aftermarket link kits. Package includes ten 5.8x3x7.5mm pivot balls.