Blue light blocking: Effectively block harmful blue light with a wavelength of 415nm-455nm; Reduce the fatigue, headaches and eye damage caused by blue light, using electronic products such as computers, mobile phones Metal frame: Stainless steel frame, rectangular design, more classic and attractive; Designed for man, with metal material, more flexible Comfortable and lightweight: Equipped with spring hinges and silicone nose pad in bridge; Suitable for various face and nose shapes; No pressure Package including: three men's reading glasses; With a pair for every place you stay, such as car, bedside table, office; Can meet all your daily needs Satisfied: If there are any problen of the glasses you received, please contact us. We will solve it for you immediately and give you a satisfactory solution 0