Not one, but two separate magnifying lenses. Each lens retreats into the protective case. Pocket size fits almost anywhere. Optical-grade acrylic lenses. Scratch resistant 2x and 4x times magnification with a total of 6x times. Great for reading old maps and checking details on coins, rings and artifacts. Using the 6x magnifier, you will know which coins or other items are more valuable. When you find an older more valuable coin do NOT mix it with other coins or other "finds", it will get scratched reducing the value! 6x will help you separate the "money" coins from the common coins!