Purchase instructions.  About chromatic aberration.  PURCHASE INSTRUCTIONS.  Sidun packing.  The pictures of our shop are taken by the real object, due to the environment, light, display, camera, shooting techniques and other factors, or there is a little color difference, the real object shall prevail.  About Dimensions.  Only looking at the picture is easy to cause visual error, the specific size, please refer to the product details, all product dimensions are purely manual measurement, or there is a little error, in kind shall prevail.  About customization.  We undertake product customization services, including but not limited to product size, LOGO, color, weight, printing and other customization, please consult customer service for details.  About delivery.  The general delivery time of our products is within 15 days. The delivery time of special products or customized products is subject to customer service communication. Please consult customer service for details.  About freight.  As the volume of most of our products are larger than the weight, it is impossible to set a unified freight template, the price marked on the page does not include freight, please contact customer service to confirm the freight before purchase.