CNC Thumb Knob Stainless Bolt Screw Long for SJ4000<br /><br />Description:<br /><br />Color: Black<br />Easy to intall.<br />CNC Thumb Knob Stainless Bolt Screw Long ( BK ) For SJ4000 Sport Cam<br /> <br />Package Included:<br /><br />1 X Thumb Knob Stai