From Big Al's Carponents
The visor is made to cover the windshield and side window on most vehicles. Visor and Smooth Contour Mounting Medallion: 2 ¼” wide x 2 ¼” high with a 1 ½” center-to-center holes.
The visor flap has built-in threaded fasteners which are designed to accept Big Al’s brushed aluminum Registration or Vanity Mirror Holders after upholstery. The Vanity Mirror and Registration Holders are sold separately