Men's Square Metal Glasses Frames Prescription Eyeglasses Size 56-18-145 metal frame plastic lens non-polarized Lens width: 56 millimeters Lens height: 30 millimeters Bridge: 18 millimeters Arm: 145 millimeters 30 millimeters high SIZE: Eye: 56 MM X Bridge:18 MM X Arm Length:145 MM Vertical B: 30 MM Superior Material: Stainless Steel Rx-Compatible: Specially tooled lens grooves of this frame allow the user to replace stock lenses with prescription lenses from his or her optician Accessories: Hard carrying case and micro cleaning cloth included Color: Matte Silver