As one of the leading optical lens manufacturer of China, we , Zhicheng Optical, have developed new hi-tech product----Polycarbonate optical Lens . We are now the only Polycarbonate Lens manufacturer of China. Test data shows that quality of our PC lens is betterr than some PC Lenses with famous brand , for example, "Essilor". Compare with glass and resin lens, PC lens has 8 advantages: *Good-looking appearane *Super light light 37%, compare with CR39 lens; light 57% ,compare with glass lens *Super thin thin 26%, compare with CR39 lens *Impact Resistant 10 times than CR39 lens, 60 times than glass lens *UV protection *Scratch Resistant PolyCarbonate Surpass AR lenses are hardcoated for excellent durability and scratch resistance. *Anti-reflection *High light- transmission rate light- transmission rate is more than 92% If you have the Interest ,pls feel free to contact me. Best Regards Leon Van Sales Manager Danyang Zhicheng Optical Co. Ltd. Add: The Korean Investment Zone, Hengtang, Danyang,China Tel: 0086-511-5801008 Fax: 0086-511-5986393 fanyong77(AT)hotmail.com