Our lens quality has almost the same competitive ability as the lens made by such well-known companies as Essilor or Hoya, which has reflected by many of our customers. Certified by CE makes us different from other companies. What is more, our lens design such as base curve is most up-to-date. We at present produce more than 35 million pcs of hard resin lens per year, and so we do not exaggerate to say that we are the biggest manufacturers in Mainland China. Our big production capacity ensures that we can effect our shipment in due time, so that you have a steady supply of lens. Regarding the index, we have the CR-39 1.499, middle index 1.56, and high index 1.60lens. Regarding the type of lens, we have flat top, round top, curve top lens, and also the progressive lens in long corridor and short corridor. Further more we can provide all kinds of semi-finished lens. Except the normal stock power, we also can produce many kinds of RX high power and high cylinder power. Features: 1) Diameter: 55mm, 60mm, 65mm, 70mm 2) Available in finish and semi-finish 3) Available in un-coated, hard coated and hard multi-coated Packing: Carton dimensions: 46 x 37 x 38.5cm