Eyebobs Board Stiff Sunreader 147 19 2.75 Round Readers, Tokyo Tortoise, 2.75 Imported Optical quality Spring/flexible hinges Free case Case included Lenses are prescription ready (rx-able) Optical quality/rx-able Spring/flexible hinge Free case included Frame width 5 1/8 inch lens width 1 11/16 inch lens depth 1 3/8 inch temple length 5 3/4 inch optical measurements 43mm x 23mm Italian acetate frames with polycarbonate lenses