Flat solid back. Direct OEM replacement. UV & impact resistant. Resistant to road salts & acids. Paintable, key lock, polar white. Cut out dim. 4-3/4" x 5-7/8", Outside Dim. 6-1/2" x 7-5/8". Collar depth: 1-1/8".

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov