Detachable Bracket and Headband - Comfortable eyeglass frame or switch to headband to ensure tight wearing and reduce fatigue for long time use. The product is a Galileo frame-type loupe with low magnification,the pupil distance is synchronously adjusted,the joint can be adjusted up and down to get accurate observation position quickly. 2.5X/3.5X magnification-340mm,420mm,500mm working Distance loupes visual clarity,convenience working distance. High-quality material,light weight,stylish design,easy carry zipper bag. Application for Industry; beauty & makeup; jewelry appraisal; clock repair and miniature engraving.