This LOT is one piece of New (unused, but without original package) Aeroflex INMET 3dB Fixed Attenuator DC-18GHz 2W 50 Ohm with SMA Connectors. Part Number: 18AH-3/EP.
Data sheet for A/AH Series Fixed Attenuator:
http://inmet.apitech.com/inmet/pdfiles/18A-ATT.PDF