ULTRA LIGHT AND THIN METAL FRAME The frame is exquisite & super light, durable strong and shatterproof, looks very high-end. | SOFT&COMFORTABLE NOSE PAD Adjustable soft silicon nose pads, reduce the burden of the nose bridge, stress less, no trace. Make you wear more comfortable. | SCREW BOLT HINGE Effectively prevent the screw loose, so that the arm can be easy to open and close. |