It has a beautiful high quality chrome plated finish with a triple chrome plating process.
It is made of quality injection molded plastic for durability and shine.
It is around 14-1/2" long and
11-1/2" wide.
The inside length is 12" and
the inside width is 9".
The cutout has a length of 9" and
a width of 3-3/4". All measurements are approximately, of course.
The frame of the trim is 1-3/8".
The mounting holes have a distance of 9-1/2", center to center, outside and
7" inside.
More Info Here.