Product information: Lens Material: PC Lens Function: Blue-light blocking Frame Material: Plastic + Metal Frame Color: Black-silver frame, black-gold frame Prescription: Plain glasses [no prescription], with variable-focus label [prescription +200], reading glasses 100° [recommended for under 49 years old], reading glasses 150° [recommended for 50–54 years old], reading glasses 200° [recommended for 55–59 years old], reading glasses 250° [recommended for 60–64 years old], reading glasses 300° [recommended for 65–69 years old], reading glasses 350° [recommended for 70–74 years old], reading glasses 400° [recommended for 75 years and older]
