Aluminum Fin Heat Sink 15 3 1 2 X 1 3 8 DIY Electronics 13994

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  For sale is a One-Piece Aluminum Fin-Type Heat Sink for use in do-it-
  yourself electronics projects, etc.  15" Long X 3-1/2" wide X 1-3/8"
  tall overall size.  Several available.  NOTE:  This heat sink will
  come with a few active components attached, which you can use or
  discard.  You may or may not get the exact active components pictured
  here.  The heat sinks themselves are all identical.  Approximately
  3 pounds net weight per heat-sink.