Goth Steampunk Vamp Mirror Tortoise Round Sunglasses Lens diameter: 40 mm | 1.57 in Bridge width: 33 mm | 1.29 in (distance between lenses) Arm length: 138 mm | 5.43 in (dowel to extreme end) Frame width: 134.5 mm | 5.29 in (hinge to hinge)