Features:- 20X magnification power- Constructed with metal glasses frame and plastic magnifier casing for hands free use， loupe location is adjustable on the frame for your comfort- Can work easier and more accurate to repair precision instruments and clocks， perfect for installing & repairing camera， watch， and other electronics- With LED light with ON / OFF switch， bright LED bulb is adjustable to illuminate viewing fieldMultiple: 20XLED Light Power Supply: 2 x CR1620 button batteries(Included)Applicable Range: Industrial purpose / Circuit board and printing industry / Medical science / Gardening / Coin and stamp / Education / Geography / Home and officeMetal Frame Width: 142mmColor: BlackPackage Dimensions(L x W x H): 153 x 50 x 50mmProduct Weight: 51gPackage Weight: 71gNotes: Please close to the object when you use， and it is not stereoscopic， the two sides can not focus on the same thing meanwhile. Package include1 x Magnifier Glassed1 x User Manual