Note: 1. The size of our products is Asian size, not US / EU size. 2. Measurement by hands allow 2-3cm errors which is normal. 3. 1 inch = 2.54 cm, 1 cm = 0.39 inch 1. About chromatic aberration. There might be sightly difference in color because of the computer monitor settings. Online shopping cannot be completely avoid chromatic aberration, please take carefully who are serious to colors. 2. Wholesale and drop shipping are both welcomed? For wholesale, we will offer discount or free express shipping which only takes 3-7 days to arrive. For drop shipping, we could send the goods to your customers directly and won't leave information about us if you'd like to. 3. How can I trace my parcel? You can trace your parcel on the following website using your tracking number: www.17track.net/en (Copied to the browser to open) ​ 4. What can I do when purchase protection time is running out? If your purchase protection time is running out, please contact us and we can help you to extend it. So your money will not go to my account.