Fangrui Product Details Material: Metal Shell, Acrylic Double-layer Optical Lens Size: 105*30*28mm (open), 62*30*28mm (folded) Quantity: 1 Piece Product Magnification: 40 Times (25mm Mirror Diameter) Battery Light Source: 2 White Led Lights, 1 Uv Currency Detector Light Battery Type: Three Lr1130 Button Batteries Precision At Your Fingertips: Explore The Tiniest Details With Our 40x Jewelers Loupe. Unveil Intricate Facets Of Diamonds, Coins, And Stamps With Distortion-free Magnification, For Watch Enthusiasts And Small Object Inspection. Dual Illumination For Clarity: Our Magnifier Features Built-in Led And Uv Lights, Ensuring Crystal Clear Visuals Even In Low Light. Uncover Hidden Features, Detect Currency Authenticity, And Appreciate Jewelry Brilliance Like Before. Portable Powerhouse: Slide The Loupe Out For Immediate Use And Tuck It Safely Back Into Its Case When Done. Compact And Pocket-friendly, It's An On-the-go Solution For Collectors, Hobbyists, And Industry Professionals. Beyond Jewelers' Arsenal: Not Just For Jewelers, Our Loupe Is A Versatile Tool For Coin And Stone Collectors, Hobbyists, And Industrial Purposes. It's An Ideal Gift To Spark Curiosity In Children, Inviting Them To Explore The Enchanting World Of The Miniature. Quality Meets Convenience: Crafted With Precision From Optical Glass And A Durable Metal Case, Our Loupe Ensures Stability, Compactness, And A Light Feel. Elevate Your Examination Experience With A Tool Designed For Enduring Excellence.