Features: Featuring 40x magnification with Double 365nm and 6500K white lamp, this specialize Magnifiers detects repairs as small as 0.01mm² in antiques and jewelry while ensuring Ra＞95 colorful accuracy for professional authentication. build in scale plate enables precise measurement during inspections, pair with lightweight ABS construction and a easy carry pouch for easy fieldwork and travel. Ideal for antique collector, jewelry appraisers, and travel enthusiasts requiring reliable on site analysis of cultural relics, stone, or repaired ceramics. Perfect for identifying invisible glues Signs at markets, verifying artifact dimension in museums, or examining porcelain cracks during archaeological surveys. strong optical glass lens resists scratches, while the ergonomic design supports extended use during detailed inspections of coin, stamps, and vintage collectibles. Specifications: Material: ABS+optical glass lens Size: 7.5x5cm/2.95x1.96inch Battery: included Package Includes: 1xMagnifying Glass note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.