This gooseneck tube is a composite metal tube made of metal spring steel wire and galvanized iron wire or other metal wire. It is hollow and has a spiral pattern. A certain size of wire can be passed through the tube hole. A flexible hose that can be bent into a certain shape in space and can maintain its shape.    
Gooseneck tube come to 6 "; 13"; 19 "three sizes in black and chrome. It can be connected to the microphone and other brackets through standard 5 / 8-27UNS thread. The metal hose has good shaping effect and is widely used. DIY universal bracket, microphone bracket; mobile phone, tablet bracket; net red LED fill light bracket; mirror stereotype bracket; wheelchair use, etc.