Catalog » Rig Hardware Boom Plug - Gooseneck (EC12-Star45-S/B) SKU/ID: EC12 BoomPlug $10.00 Short DescriptionMain Boom Gooseneck Plug 3D Printed gooseneck Plug for use with the Goldspare tear dropped extrusion booms and CPM Gooseneck Mast fittings. Drilled for a 2-56 Ball link - Ball Link is included