1This 5X magnifier can help you watch the jewelry or other little objects carefully and clearly. 2The lens is made of optical glass and it is durable. 3The necklace adopts quality zinc alloy material, sturdy and durable, can provide a long service life. 4Great for reading, jeweler's diamond inspection, yard sale or swap meet buyers, stamp, coin, gems. 5Portable size is easy to carry, convenient to use. Features: This 5X magnifier can help you watch the jewelry or other little objects carefully and clearly. The lens is made of optical glass and it is durable. The necklace adopts quality zinc alloy material, sturdy and durable, can provide a long service life. Great for reading, jeweler's diamond inspection, yard sale or swap meet buyers, stamp, coin, gems. Portable size is easy to carry, convenient to use. Specification: Item Type: Necklace Magnifier Material: Zinc Alloy, Glass Optional Colors: Gold, Silver Len: 1-3/4" powerful glass lens made of optical glass Magnifier: 5X power magnification Magnifier Diameter: Approx.4.5cm / 1.8inch Chain Length: Approx.46cm / 18.1inch Weight: Approx.31g / 1.1oz Uses for: hobbyists, stamp collectors, jewelers, map readers, watch repair, students etc. Package list: 1 x Necklace Magnifier