Made in USA, Loupes ERGO (Titanium Frame) , Fully Adjustable Flip Up Ergo Loupe, 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. Say Goodbye to Bowing your head.  Our ergonomic design reduces cervical fatigue and can extend a professional's career. Light weight and installed onto our Titanium frame, this ergo loupe  provides comfort for all day use. Magnification: 3.5x or 5.5x Field of View: 3" Depth of Field: 5" Weight: 2.0 ounces or 2.3 ounces Working Distance: Made per your request. (From 16-22") Light Clip Option: If you have a light you may opt to have the light clip installed onto the frame. The light clip is shown in the pictures above.Please Note:  Although we try to get your customized loupes to you as quickly as possible, it can take 4 weeks. Made in USA