[Hackberry] Reading Glasses, Bifocal Sunglasses, Photochromic, Thin, Senior Glasses, UV Cut, Men's, Stylish, Square, Metal, Black, 2.0 Magnification,

[Bifocal & No need to take them on and off] Clear vision for close distances when you lower your gaze, and clear vision for long distances when you raise your gaze. Comfortable with just one pair. [Photochromic lenses] The lenses automatically darken when exposed to sunlight. They return to clear indoors, so they don't get too dark. [99% UV protection] UV protection protects your eyes and reduces glare outdoors. [Ideal for smartphones and reading] The close-focus lens area is wide, making it convenient for smartphone and computer work. [Durable and safe materials] PC lenses are used. Frame materials vary depending on the model, including PC, CP, PVC, stainless steel, and silicone.