The byomic jewelry magnifier doublet byo-id1023 10x23mmis a universal magnifying glass, which consists of two lenses. these lenses have a combined magnification of 10x and a diameter of 23mm. this magnifying glass is known as a jewellery magnifying glass, as this loupe is often used for observations of jewellery. you can easily slide the doublet over your index finger. this allows you to study the finest essential details of the material to be examined. Usage byomic jewelry magnifier doublet byo-id1023 10x23mm The compact magnifying glass is lightweight and easy to carry. for high reliability, the housing is made of metal; the lens is made of high quality glass. this gives you an extremely clear image and a high scratch resistance. • length folded out: 68mm • length not folded: 39mm • height: 20mm • weight: 10 grams