This object is a circular plate that has a small solid dark cylinder in the center. On two sides there are two sets of three connector holes. Both of the sets of three have wires with white insulation. Underneath this is a ceramic U-shaped frame with two silicon chips mounted on a small metal bar with a metal mask above it. There is a paper label on the plastic container box which says,"Special for 304 Collimator(?) OD160-1 material."