10X 20X Double Lens Folding Magnifier. This is a new double lens folding pocket magnifier. Both lenses are 10X and you can combine the two for a total of 20X power. The glass lenses used in these folding pocket magnifiers provide durability for a long life. The durable plastic swing-away cases not only provide a protective cover for the lenses, but serve as handles as well. Each 10X lens has a 1" (25 mm) focal distance. When combined for a total of 20X, it has a 1/2" (13 mm) focal distance. It measures approximately 2 3/16" x 1 1/2" x 1" (56 x 38 x 25 mm) closed and 3 15/16" x 1 1/2" x 1" (100 x 38 x 25 mm) open 20X Microscope Magnifier. This is a new 20X microscope magnifier. This can be used for looking at gem stones, stamps, coins, etc. It comes with a key chain for your convenience. It measures approximately 1 5/8" (41 mm) long and 9/16" (14.5 mm) in diameter. Eye Loupe 15X. This is a new 15X plastic eye loupe. This pocket size loupe has distortion free lenses. The shape of this eye loupe allows it to rest comfortably in the eye socket. It has a focal distance of 3/4" (19 mm). Eye Loupe 12X. This is a new 12X plastic eye loupe. This pocket size loupe has distortion free lenses. The shape of this eye loupe allows it to rest comfortably in the eye socket. It has a focal distance of 7/8" (22 mm). We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.