These frames are Maher from a TR90 front and acetate temples. The hinges are riveted through like vintage frames for enhanced durability. The lens has a blue light filter for computer reading or gaming. The magnetic sun clip is polarized for superior glare protection. These are optical quality and can be taken to your favorite optician to put your prescription. Stylish tortoiseshell square sunglasses with dark grey lenses. Perfect for women or men. Multiple uses Size 47-23-144