MAGNIFIER MATERIAL - Magnifier is made of zinc alloy glass holder(black paint) and 2 pieces high quality optical glass lens,durable enough for your daily using 30X MAGNIFICATION - The optics loupes magnifier with 30X magnification can provide you more clear and close view for tiny objects PRECISION INSTRUMENT - Designed for gems, jewelry, coins, stamps, rocks, watches, hobbies, antiques, models, photos industry, etc PORTABLE SIZE - 43x43x30mm/1.7x1.7x1.2 inch.Perfect size,easy to put into your pocket, purse or handbag,portable to take anywhere with you A PERFECT GIFT - magnify maps, newspapers, or magazines with ease with this lovely magnifier, ideal chioces for seniors, hobbyists, stamp collectors, jewelers, reading maps, and specific detail watch repairs Specification MATERIAL: Zinc alloy glass holder and optical glass lens COLOR: Black paint SIZE:Magnifier size: Approx 40*30mm/1.57*1.18inch Optical lens diameter: Approx 36mm/1.42inch Package content:1 Piece magnifier