This is a set of 4 single Pylons with
VF-1 from Yamato and Arcadia (hard points with rotation)
That means that you can put any DX missiles on these pylons and:
1) mount the missiles and pylon on any Yamato / Arcadia valkyrie toys such as the VF-1 / VF-19 etc
2) or put the pylon on the
VF-1 Hard Points that you previously glued to any existing toy (typical use: on the DX Bandai VF-25 that never had hardpoints because of the variable sweep wings)