The 17.7" Flex Arm from Kupo has a hex stud on one side designed for the Convi Clamp or Super Viser Clamp or Super Clamp Systems. The other side has a 5/8" "Baby" stud with a male 1/4"-20 thread for lightweight clamps, cameras, microphones, lights or flash units. The flexible arm in between can be bent and holds shapes like an s-curve.