PC & Spring Hinge frame
Lens width: 52 millimeters
Bridge: 18 millimeters
FEISEDY Stylish Lightweight Round Frame Reading Glasses - perfect for eye protection while reading, sticking to eye health
Progressive multi-focus blue light blocking reading glasses helps middle-aged and elderly people have a better viewing experience (reading, using electronics, enjoying the beauty). Progressive lens gradually changed and transited by optics step by step, gradually increasing the degree within the acceptable range of human eyes, so as to meet various purposes. The use of progressive zoom glasses can make the eyes more relaxed, reduce the tension of vision.