Prada (Linea Rossa) PS51DV Eyeglasses-PDD/1O1 Gunmetal Demi Shiny-54mm composite frame composite lens non-polarized Lens width: 54 millimeters Bridge: 19 millimeters Arm: 140 millimeters Buy with confidence! Authorized Retailer. Authenticity Guaranteed. Full retail package with all accessories.