Head for selector switch, Harmony XB4, yellow handle, 22mm, 2 positions, stay put
Head for selector switch, Harmony XB5, black knurled knob, 22mm, 2 positions, stay put
Head for selector switch, Harmony XB5, black Ø22 mm 2 position spring return
Head for selector switch, Harmony XB5, black toggle switch, white lever, 22mm, 2 positions, stay put
Head for selector switch, Harmony XB5, flush mounted black long handle 3 pos return l to c
Head for selector switch, Harmony XB5, flush mounted black long handle 3 pos return r to c