Our R&D staff members supply 50 new styles each month to enrich our main products, and provide samples with packaging in just 7 days. In order to supply the satisfactory products. We invest $40,000 in our QC procedures every year, monitoring and testing all products at each stage of the production process, drawing, color, size, quality and packing etc. For easy market entry, our products carry FDA, CE and EN1836:2005 approvals. Our 12,000-square-meter factory has 4 production lines with a daily capacity of 40, 000 pairs of glasses.