Men's Polarized Clip On Flip Up Sunglasses Rectangle Mirrored Clip-on Driving No.806 Imported metal frame plastic lens polarized Lens width: 60 Lens height: 37 Bridge: 22 1.46" high Blue lens could only be used under strong sunlight Polarization eliminates glare on water, snow and windshields Convenient one hand application to Prescription frames with positive indexing lens positions Soft rubber Legs have proprietary coating to protect ophthalmic lenses and prevent shifting and scratching Nice and simple Aluminium-Magnesium Alloy clip, Aluminum and magnesium alloys are receiving increased attention due to their light weight, high strength ,good extrudability, and resistance to corrosion