[10X Lens Quality & Solid] 10X double lens are made of premium diopter glass, unlike cheap plastic/acrylic lenses that fog up. Crystal clear view without distortion. Handle & Covers are made of sturdy metal to protect the lens. Materal Priority:Tough enough,Scratch Resistant,No-plastify,Temperature resistance,High Transmittance,Durable."The magnafine glass is so much clearer than what I was using"- buyer. [3 LED Long-lived Lighting] 3led daylight-color cool white light creates more evenly lit viewing area for observation in dim condition.These LEDs are powered by 2 AA batteries(Not included), designed to last for 80,000+ hours which is equivalent to 10-15 years without Burning out or Overheating.you'll never have the replace the bulb! "Lights allow me to see details,my beautiful photograph"- buyer. [Measuring Scale] Built-In Measuring scale in mm and inches for convenient use and accuracy. [Case & Portable] Storage case is included. 5 ounce is easy to take with travel. [Serve for:] Detail Observer, Defect finder, Jewelry, repair,appraisal, document authentication, Coins drawing/map reading, crafting