Our factory: Danyang Clear Optical Co., Ltd.It is a professional spectacle lenses manufacturer, specialized in producing and wholesale optical lenses. As a manufacturer and exporter, we can offer:CR-39 1.499 and 1.56 Middle Index Organic Resin Lenses. 1.59 Polycarbonate (PC) Lenses.1.61 and 1.67 High Index Plastic Optical Lenses.1.523 and 1.70 Mineral Glass Lenses.Design: Spherical and Aspherical.Diameter: 50mm, 55mm, 60mm, 65mm, 70mm, 75mm.Type: Single Vision, Bifocal (Round Top/Flat Top/Invisible), Progressive Lenses.Color Type:Photochromic(PGX/PBX), Transition, Polarized, Tinted(Dyed), Sunglass, Lenticular and RX Lenses are available. Coating: UC(uncoated), HC(hard coated), HMC(hard multi-coated)(AR), HMC+EMI, HMC+EMI+UV400 are available.Style: Finished and Semi-Finished Lenses are available.welcomed to my skype: opticalhelen