<p><b>Please Note:</b></p> <p>This replacement ball only suitable for 16gauge(1.2mm) and 18gauge(1.0mm) piercing hole jewelry; The threaded hole is small. </p> <p><b>This could not be used for any 14gauge piercing jewelry!</b></p> <p><br></p> <p></p> <p><b>Threaded hole: </b></p> <p>16gauge(1.2mm)</p> <p><b>Ball outside diameter: </b></p> <p>1/8"(3mm)</p> <p>5/32"(4mm)</p> <p>13/64"(5mm)</p> <p>1/4" 6mm</p> <p>5/16"(8mm)</p>