Men Half Rimless Transition Photochromic Reading Glasses Sunglasses Reader UV400
Lens Width: 52 mm
Lens Vertical: 28 mm
Bridge: 17 mm
Frame Width: 138 mm
Temple Length: 140 mm
Package: 1X Reading Glasses (Compact Case & Cleaning Cloth)
Clear indoor, darkens when exposed to sunlight.
Come with anti-reflective coating and 100% UV protection coating.
May not darken inside a car or near windows since most windshields / windows block UV rays needed to darken the lenses.