Unisex Two Toned Prescription Rx-able Eye Glasses Frames. Specification: Eye Size 51 .Bridge Size 16 .Temple Size 135 .Spring Adjustment on Frame: Yes. Colors: 3 Color Options Stainless Steel and/or Acetate Mixture Material. Free Storage Case and Cleaning Cloth Included with puorchase Prescription RX-ABLE. You can put your own prescription lenses in these frames, with the help of your local optomitrist Eye Size 51 .Bridge Size 16 .Temple Size 135 .Spring Adjustment on Frame: Yes 3 Color Options Free Storage Case and Cleaning Cloth Included with Purchase Acetate Mixture Material