Used, HPI Racing RS4 / Kyosho Vintage Series Oil Filed dampers (1 pair).  has metal caps, plastic bodies, appear to be leak free.  I believe they are either OG HPI RS4 or Kyosho Classis series (AC cobra, Ford GT40, Corvette C4) dampers from the early 1990s - touring car infancy.  Definitely not from Tamiya.