Bright Black Vintage Small Round Eyeglass Frames Glass Spectacles Retro UNI Optical Eyewear plastic frame plastic lens non-polarized Lens width: 45 millimeters Lens height: 45 millimeters Bridge: 20 millimeters Arm: 142 millimeters Lens Vertical:45mm/1.77inch / Bridge:20mm/0.79inch / Lens Width:45mm/1.77inch / Temple:142mm/5.59inch / Frame Width:140mm/5.51inch Fix arms provides flexibility and comfort Made of high quality plastic with metal hinges, it is very sturdy Comes with removable plastic demo lens You can take the frame to your eye doctor to replace with your own prescription