The Carson Optical TV-36 3-8.5x TriView Folding Loupe Magnifier puts powerful and versatile magnification in your pocket for easy use wherever you are. Each of the three acrylic lenses simply flip out from the integrated protective case to provide progressively higher power for viewing stamps, coins, gems, jewelry, or other hobbies and collectibles; and to increase the power even more, stack multiple lenses together. This compact and lightweight loupe easily fits in pockets, packs, or purses, and weighs just 1.3 ounces.