Material:galvanized rome; black, silicone, painting Threads:M6, M8, M10 &customize Outer diameter:1.5mm-28mm Features:willful curves and random directions Application:led lamp, webcam, ear medical Certificates:ISO9001:2008 SGS Size:customized Name:gooseneck flexible tube pipe Sample time:about 10 days Need M8 ends and 150mm long, black color