The silver shroud enclosed the copper fins and base and had a nice touch of design for the fan grill. The copper area of the heat sink was exceptionally shiny. There are enough fins to give extra surface area and still provide ample room for air to circulate. The fins were skived and were not soldered onto the base of the heat sink. This gives better heat transfer from the base to the fins, which in turn, should work better. The bottom of the heat sink was very shiny--a mirror finish.