External Dimensions: Approx. 6.5 x 4.9 x 0.2 inches (164 x 126 x 5.3 mm) (not including protrusions) Length and aperture, compatibility: Mirror part: 4.8 x 6.0 x 0.08 inches (121.4 x 151.4 x 2.0 mm) (tolerance ± 0.02 inches (0.5 mm) Material: Aluminum, Mirror: Glass