Calabria 21139 Computer Reading Neck-Hanging Eyeglass in Grey, Black, or Tortoise Imported Acetate frame Composite lens non-polarized Lens width: 52 millimeters Lens height: 29 millimeters Bridge: 19 millimeters Arm: 145 millimeters Special Anti-Reflective Coated Lenses Designed for Computer Use Special Arms Designed for Neck-Hanging Never Lose you Readers Again 5.5" x 1.25"