Lightweight, half-rim, metal frame. This progressive readers glasses stylish design suits all face shapes and occasions. The spring hinges ensure a comfortable fit for all head sizes. The black finish is scratch-resistant. These sunglasses are comfortable, fashionable and attractive to wear. Photochromic technology: The progressive reading glasses for men lenses change from clear indoors to dark outdoors in eight seconds when exposed to UV rays. They block 100% of UV400 rays and reduce glare while driving or taking part in outdoor activities. There's no need to carry extra sunglasses! Blue light and UV protection: Multi focus reading glasses dual shielding technology filters out 45% of harmful blue light from the screen and blocks 100% of UV rays. This reduces eye fatigue during computer work. Triple Focus Optical Technology: Readers glasses Top: long-distance vision for clearly recognising road signs and scenery.Middle: Mid-distance focus for computer and office work.Bottom: Reading magnification area of +1.0 to +3.5. Head movement is reduced by 90% compared to monofocal lenses. EXCELLENT PACKAGING: Deluxe out-of-the-box experience - ✓ Photochromic glasses ✓ Fine glasses case ✓ Microfiber cloth. Perfect for birthday/retirement gifts! 1