- Titanium frame
- mirrored lens
- non-polarized
- Lens width: 54 millimeters
- Lens height: 33 millimeters
- Bridge: 18 millimeters
- Arm: 146 millimeters
- 100% β Titanium Arm,Light-Weight and Elastic (<11g)
FONEX β Titanium Rimless Square Glasses Frame for Men Women Light-Weight Elastic,Ultralight(<11g),other metal this style glasses must have 15-20g,is comfortable for your nose