10X Stand Measuring Magnifier Scale Loupe Magnifying Glass 10X with Sc

158545701/13071225489 Principle:In order to see the details of a small object, it is necessary to move the object close to the , so as to increase the angle of view and form a larger image on the retina. But when the object is too close to the , it can not see clearly. In other words, to be aware of the truth, not only should the object have a good enough to the , but also should take the appropriate distance. Obviously, for the s, these two requirements are mutually restrictive. If a convex lens is placed in the front of the s, this problem can be soed. Convex lens is the simplest magnifying glass, which is a simple optical instrument to help the s observe Small objects or details. Magnification: 10X Colour:black Material:plastic Size:41 x 44 x 45mm Lens diameter: 20mm Package Contents: 1 x Scale magnifierOnly the package content, other products are not included. Note: Lht shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.