Tool for adjusting chinrests.
Kun replacement part - end member, 4 hole, fits Classic 4/4, specify right or left side. Left is 'K' side and right is 'N' side; reading "K" or "N" from the "Kun" brand from the back side of the shoulder rest
Kun replacement end member for Mini.
Classic or Collapsible model, Right or Left ('N' or 'K') side, and color (black, blue, red, green, or yellow).