Bright LED and UV light: with this dual LED light source you can see objects clearly in low light or dark conditions. It has a UV light for identifying counterfeit banknotes, passports, paintings, geological studies. Requires 3 x LR1130 batteries (batteries included). 40x handheld lens: Made from durable metal and optical grade glass, the luminous jeweller's magnifier has a true diopter glass lens that glows in daylight without glare and increases magnification to 40x without spots or blurring on the image. Easy to carry - weighing just 3.1 ounces and pocket-sized, the jewellery eye ring is easy to carry wherever you want to go. The special folding design allows the jewellery magnifier to be used by simply taking it out and putting it back in when not in use, with the lid folding down to protect the lens for easy portability. Ideal gift: the loupe is perfect for geological surveyors, rock collectors, jewellers, hobbyists, artisans, coin collectors, stamp collectors, bead and jewellery making, machine shop tools, electronics and computer repair. A great gift for students and children. They will love discovering the wonderful little world around them. Colour:Silver Size:110*30mm Package include:1*Handheld Magnifying Glass