Pocket size:it is very convenient to carry and you can use it anywhere. It requires 3 LR1130 batteries (Batteries are Included).
currency,
40X Jewelers Loupe with Light, UV Lighted Magnifying Glass Eye Loop, LED Illuminated Metal Pocket Magnifier for Jewelry, Currency, Plants, Coins, Diamonds, Stamps
UV & LED LIGHTS: This jewelers magnifying glass comes with 2 LED & 1 UV Ultra Violet Black Light for currency authentication built in for clear magnification even in poor lighting conditions.