Super macro: The closest to 40MM, you can also focus accurately. All-metal mirror body: meticulous workmanship, precise structure, texture and identity. 10-300X Variable: Ultra high magnification, unlimited extension of your line of sight. Optical lens + high-definition green film: The image is clear and sharp, and the viewing is pleasing to the eye. Folding eye mask: Easily solve the problem of wearing glasses friends, you can get clear imaging without taking off your glasses.