●Plastic frame ●plastic lens ●non-polarized ●Lens width: 48 millimeters ●Arm: 140 millimeters ●【FEATURES】- Clear lenses can be disassembled for more ultralight and comfortable experience; Lenses can be replaced with your optical lenses at opticians; Universal size fits most face shapes. ●【EXCELLENT TR90 MATERIAL】- The advanced TR90 material is light-weight, flexible and durable. Glasses without lenses is only 10g, you can hardly feel them on your face.