The 120mm slide-in quick release plate has a 1/4"-20 connecting screw and two safety stop screws for Cameras, Ballheads, Panorama Head and other Arca-Swiss compatible Quick Release clamps.
With 39mm AS standard interface, compatible with all Acra-Swiss Style quick release platforms.
Compatible with: RRS / ARCA-SWISS / KIRK / Wimberley / MARKINS / SUNWAYFOTO / Kangrinpoche / BENRO / SIRUI Ball Head, Clamp or Panorama Head of AS standard