Mens Modern Sturdy Prescription Eyeglasses Frames 56-18-145-37 Imported Composite frame plastic lens non-polarized Lens width: 56 millimeters Lens height: 37 millimeters Bridge: 18 millimeters Arm: 145 millimeters SIZE: Eye: 56 MM X Bridge:18 MM X Arm Length:145 MM Vertical B: 37 MM Superior Material: Handmade ZYL Acetate Sheets Rx-Compatible: Specially tooled lens grooves of this frame allow the user to replace stock lenses with prescription lenses from his or her optician. Adjustable Spring included on Temples. Accessories: Hard carrying case and micro cleaning cloth included Color: Brown