Rimless Titanium Frame Photochromic (light-adjusting) Lenses eyeglasses Beta titanium frame resin lens non-polarization Lens width: 52 Lens height: 31 Bridge: 18 Arm: 155 Photochromic lenses are specially treated to automatically turn dark when exposed to UV light. When the lenses are out of the sunlight, they become clear again. Indoors it is a transparent glasses, radiation protection degree 0 in the outdoor is a pair of sunglasses, a dual-use, very convenient Lens is 1.56 aspherical resin green membrane , add green membrane lens reduce reflective, increase the light transmittance, at the same time also increased the lens wear resistance, dirt resistance , waterproof function There are quite a few part of glasses appearance looks the same but the price is far and materialsBeta titanium, titanium is refers to the zero delay cooling condition to complete the beta particle titanium material has good strength, light weight, corrosion resistance, not cause skin irritation, durable. Beta titanium is a kind of titanium alloy, in addition to the advantages of pure titanium frame, its flexibility in certain external pressure automatically return to have plasticity RX Compatible allowing you the option of having your optician replacing the lenses with your own prescription lenses.This glasses regardless of gender, men and women general, fashion and easy, after order, normally 7 to 15 working days can receive