This high-quality mini magnifying glass loupe, has a 10 X magnification, which is perfect for metal detecting research, viewing maps, coins, jewellery. It is foldable with a magnifying glass that measures 4.5cm x 6.5cm(folded), 4.6 x 10.5cm (expand) having a lens diameter of 34mm, which is lightweight and convenient to carry, the ideal gift.