Agstum Retro Small Round Optical Rare Wire Rim Eyeglasses Frame Imported metal frame plastic lens non-polarized Lens width: 39 millimeters Lens height: 39mm Bridge: 24mm Arm: 125mm~138mm(available range) Lens width:39mm/1.54, Lens height:39mm/1.54, Bridge:24mm/0.94, Temple length (Acceptable Range):120mm/4.72 ~ 140mm/5.51, Total width:116mm/4.57.Please kindly note the total width is about 116mm,so it will be fit for child or adult with a small head These metal frames come with demo lenses, you can change lenses at your local optical store. DEMO lenses are not good for wearing, there are some scratch or stain. Please change lenses if you want to wear.you can replace them with your prescription lenses There are side screws on the frames,so you can put your prescription lenses into these frames at the local optical store. It's good for prescription lenses(capable of progressive or bifocals lenses) Metal frame with cable temples for a more secure fit, the stems are a pretty flexible wire that would wrap around the ears Lifetime Breakage Warranty on Frame,30 Day Money Back Guarantee