The Ghostbusters Pro model has a flat stock plastic in this location.  A  3D  molded library is a direct replacement.  Each piece is hand painted and clear-coated for added durability.  Two different styles to chose from.  Standard stone look with greys and black, or the cartoon style , which has brighter colors that match the playfield colors.  The windows are cut out and a yellow plastic light shield illuminates from inside.  Interactive with gameplay.   A beautiful enhancement to the GB pro.

Installation Instructions