The diameter is 3-3/4".
For more information, follow the link: 1955-68 Chevrolet; Dome Lamp Lens; Round; White
English
![ci-logo-186x71.png]](https://help.classicindustries.com/hs-fs/hubfs/Classic_Industries/CI_logos/ci-logo-186x71.png?height=50&name=ci-logo-186x71.png){kind=logo}
The diameter is 3-3/4".
For more information, follow the link: 1955-68 Chevrolet; Dome Lamp Lens; Round; White