Frame Measurements Frame Width126 mm / 5 in Bridge20 mm / 0.8 in Lens Width49 mm / 1.9 in Lens Height42 mm / 1.7 in Temple Length140 mm / 5.5 in Frame Details SizeAdult Medium(126 - 132 mm / 5.0 - 5.2 in) MaterialAcetate WeightLightweight(18 grams / 0.6 ounces) RimFull Rim ShapeSquare FeatureSpring Hinges,Universal Bridge Fit,Custom engraving Prescription Details PD Range 54 - 79 mm Additional fee for PDs below this range. Prescription Range -20.00 ~ +12.00 Available as Progressive / BifocalYes Available as ReadersYes