Magnifying Glass 10X 15X 20X 25X Eye Jewelry Watch Repair Magnifier Loupe With 2 LED Lights REPLACEABLE LENS - 4 Pairs of replaceable lens with different magnifications (10X, 15X, 20X, 25X) can be interchanged quickly; Too high magnification can not to reading books. If this magnifier is used for long time, you may use two lens barrels alternately to eliminate visual fatigue and improve work efficiency. LED DESIGN - Left right double eye patches magnifier with adjustable LED to help work in low-light conditions and LED light source and battery compartment are designed separately to facilitate stabilizing light source irradiation.(Battery Included) ADJUSTABLE BRACKET - Eye patches can be moved 5mm leftwards and rightwards on the bracket to ensure the eyeballs are in the central position; it can rotate 180 degrees upwards and downwards. it is not required to take down the whole lens bracket when the magnifier is not used temporarily and you can reuse it conveniently. TWO WEARING METHODS - Bracket and headband is interchangeable to each other and ensure more comfortable and tight wearing. It is advisable to choose lens barrels of appropriate magnification according to the size of the object to be observed. MULTIPLE USES: Widely used in mechanical processing, electronic repair, jewelry appraisal, timepieces repair and miniature engraving, etc.