Together with the operative microscope, it includes all surgical instruments that are key to a microsurgeon. They are not simply miniature reproductions of standard surgical instruments, but they have been duly designed and adjusted to meet different needs: for example, their tips must be very thin in order to handle highly fragile structures, they have to be used in very small spaces, and have no reflecting surfaces. Further, they must have the right ergonomic features to be extremely easy to hold and handle.