✔ PRODUCT MATERIAL: Zinc alloy (black paint), both of lens are made of optical glass for extra sharpness and clarity, and scratch resistent.
✔ GREAT PRODUCT: Great product for the watch making industry, specially for inspecting those tiny objects. You can get an extremely close view of the tiniest details.
✔ USING OCCASIONS: Getting an extremely close view of the tiniest details for watch repair, jeweler, coins, antiques and so on, which is practical and durable.
✔ LIGHTWEIGHT AND COMPACT: Lightweight and tiny, great to have one in your pocket all the time.
✔ PORTABLE: Pocket size on your hand. 30 times magnification. The Diameter of Lens: 40mm, the height of magnifier: 1.18inch.