1.Out Diameter 9mm, Inner Diameter 6mm, Total length 170mm, Chromeplate Surface Disposal. 2.ID9mm through hole can put a rubber tube inside it to transfer the gas 3.Reasonble bend ability design, made it change or keep position easily 4.Working End side mounted with OD10mm 4 holes Punched round fittings, Useful for Gas-Fired functions, 5.Assembly end side produced as Cleek type, Easy for assembly,