This portable magnifier adopts metal materials, sturdy and durable, can put in your pocket for anytime use. It is great for jeweler's diamond inspection, yard sale or swapmeet buyers, stamp, coin, gems. Also used in science labs for mineral, plant, insect inspection and identification.Features:1. Two choose (30x and 20x): it can help you watch the jewelry carefully and clearly. 2. Adopts metal materials, sturdy and durable, can put in your pocket for anytime use.3. Teardrop shell, is good for protecting lens when not in use.4. Comes with a storage box, convenient to carry.5. Great for jeweler's diamond inspection, yard sale or swapmeet buyers, stamp, coin, gems. Also used in science labs for mineral, plant, insect inspection and identification.Specification:Item Type: MagnifierMaterial: MetalOptional Style: 30X, 20XItem Color: As Pictures ShownItem Size: Approx. 5.5 x 2.3 x 1.8 cm / 2.2 x 0.9 x 0.7 inchPackage Weight: Approx. 50 g / 1.8 ozPackage Include:1 * Magnifier 1 * Storage Box