Made in USA, RayBan loupes Frame 2.5X  Expanded Field TTL from Rose Micro Solutions , an american brand from rose micro solutions,Its 100% pure glass lenses and high-definition lens body design make it suitable for use in most lighting conditions, although additional lighting may be required in some other situations.Our Customized built-in TTL (Through The Lens) will be made specifically for any individual. This TTL is available in a variety of magnifications on this genuine Ray-Ban Wayfarer frame. Our 2.5 Mini offers a 4.5" Field of View and 6" depth of field, giving you a wide range of motion.  This loupe is super lightweight and great way to get used to loupes.Please Note:  Although we try to get your customized loupes to you as quickly as possible, it can take 4 weeks.