Dale Earnhardt Jr. 6758 Gun Metal Eyeglass Collection ; Demo Lens Acetate frame plastic lens non-polarized Lens width: 57 millimeters Bridge: 18 millimeters Arm: 150 millimeters Authentic Dale Earnhardt Jr. Eyeglass Frames with Signature Hard Case Custom Reading Glasses produced with High Quality Optical Frames Stylish Modern Design. Spring Hinges for the The Utmost Comfort. Adjustable Silicone Nose Pads for a Precise Fit Demo Lens ; No Power, RX READY. Custom Prescription Lenses Available