Feature:1. It is used to observe paper and printing points of sale of banknotes, tickets, stamps, coins and cards in the financial, tax, philatelic and electronic industries.2. It can be used in the jewelry industry to observe the internal structure of gemstones, the molecular arrangement of cross-section, and the analysis and identification of ore samples and cultural relics.3. Applied in the printing industry, it can be used for plate finishing, color and dot correction, edge extension observation, accurate size measurement of protective mesh, dot size, printing error, etc.4. It can be used in the textile industry to observe and analyze the density of fibers and warp and weft.5. It can be used in the electronics industry to observe the stripe and quality of copper platinum PCB.6. It can be used for the observation and study of germs and insects in agriculture, forestry, grain and other departments.7. It can also be used for animal and plant specimens, evidence identification and analysis, scientific experimental research, etc. Specification:Material: LED fluorescent lamp, housing made of imported ABS plastic, acrylic optical lensMagnifying glass size: 54x35x24mm, retractable size: 82x35x24mmMultiple: factory printed 30 times, real 10 times, effective diameter: 21mmBattery: 1130 button battery (not included)Usage: pull out the lens, LED is on, press the LED to turn off. Note:Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Please allow 1-3cm measurement deviation due to manual measurement.1 X Jewelry Magnifier