Wearing Progressive multifocal readers with clear Blue Light Blocking Lense with no lines allows you to effortlessly see near and far without switching your eyewear Premium Polycarbonate: technology that provides a sturdier frame Progressive Multifocal & Blue Light Blocking  Sizing:  Lens width: 46mm Bridge: 26mm Temple: 148mm  Available in 2 Colors: Tortoise Transparent Blue DREW| R-9048-C3-PAL Transparent Navy |Progressive Blue Blue Light