With calibration, clear and precise YC Three folding Magnifier (10times) (Available product: 15times magnifier) Technique parameter:Magnification: 10timesType: 45*30*14mmScale precision: 0.05mm measuring the size of ink spots Features:With calibration, clear and precise Use:Printing network, note and paper; jewelry appraisal, electronics, manufacturing, textiles, philately and archeology, etc.