This listing is for a set of 6x smartie Sifam knobs
Fully functional with all their grub screws
These came off of a 1971 Dallas Arbiter SOUNDCITY 120 head - Correct for any sound city head made between 1969 and 1975
These will fit a 1/4" shaft so can be installed on pretty much any head.
This set consists of 2x black, 2x red, 2x green
anything else just ask