A standard of watchmakers and jewelers for years. Two glass lenses snap together in a black plastic housing. Can be used as a single 4X loupe (2-1/2" focal length) or a double 12X loupe. (3/4" focal length)
Size:1-3/4" high x 1-3/8" diameter.
Lenses are 7/8" and 9/16" diameter.
Magnification:12X & 4X
Why do I need this item? This is an essential item for viewing diamonds, gem stones or other small objects, and is a long time jeweler favorite.