For flat deck and pickup trucks towing trailers there are fifth wheel and gooseneck hitches. For uneven terrain a gooseneck hitch is an option to fifth-wheel. The gooseneck may be a two axis swivel as pictured. Gooseneck mounts are often used for agricultural and industrial trailers. A gooseneck couples to a standard ball mounted on the bed of the tow vehicle. Unlike the Micron, the Miniak standard comes with a gooseneck microphone. The gooseneck pivots allowing the other end of the boom to move freely. The octagonal building includes a Spanish tile roof and large gooseneck reflectors to improve lighting. Instead, it consisted of individual candelabra, each supported by curved piping (a gooseneck). One gooseneck joins the corporation stop to the water service pipe work. Gooseneck barnacles, sea mussels and several species of acorn barnacles soon follow. Gooseneck barnacles may limit the colonisation of mussel recruits by feeding on their larvae. The distribution of both gooseneck barnacles and sea mussels is quite patchy. The bore expands through the gooseneck to the bell, which is typically between .