On the right box of magnifier glasses. Lens can change 10X, 15X, 20X, and 25X. All of lens include this magnifier set. I think this magnifiers are much more useful enough for watchmaking. So cheap price and conveniently, easy to switch magnify of lens.
These are my tweezers set RTB brand and them made in swiss, high quality steel, non magnetic and anti-acid. This brand come from watchmaking tool shop which order swiss factory to made them with high precision and quality. The price per each about 16-18$. The picture show the end of tweezers.