107106 traversing systems 3/4“ dia.finishes available 70 chromium 77 stainless steel 79 aluminium quantum 20 77 stainless steel scale 1:1 with finial Metro quantum 20 79 aluminium with finial Metro votum 20 70 chromium with finial Phantom 20 corpus 20 79 aluminium with finial Metro 50 white (only corpus 20) 56 black (only corpus 20)