Packaging Details 1.56 hmc lens packing: envelops packing (For choice):  1)standard white envelops 2)OEM with customer's LOGO, have MOQ requirement cartons: standard cartons:50CM*45CM*33CM(Every carton can include around 500 pairs lens,21KG/CARTON) Port：SHANGHAI

This tools is help seller to explain for customer. What is the thickness difference for 1.56, 1.60,1.67 and 1.74 for -6.00 power. and show the difference of Asperic lens advance than normal spheric lens