Ernest Hemingway Eyeglass Collection 4629 in Gloss Black & Silver ; Demo Lens Acetate frame Composite lens non-polarized Lens width: 51 millimeters Lens height: 38 millimeters Bridge: 17 millimeters Arm: 140 millimeters Authentic Ernest Hemingway Eyewear Case Included Lightweight & Durable Vintage Design Demo Lens ; No Power