Features: Excellent tool for watch making or repair, viewing jewelry, coins, stamps, houseplants, rock collection, horticulture and so on. Magnifier is made of zinc alloy glass holder(black paint) and 2 pieces high quality optical glass lens. Light weight, easy to carry. Small size, easy to put into your pocket, purse or handbag. The optics loupes magnifier with 30x magnification can provide you more clear and close view for tiny objects. Great product for the watch making industry, specially for inspecting those tiny objects. You can get an extremely close view of the tiniest details. Package Includes: 1x Jewelry Magnifier Specifications: Material: Zinc Alloy + Optics Lens Size: 4.7x3cm/ 1.85x1.18 in Magnification:30x40 note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.