Consisting of a metal tube containing a series of lenses, fiber optics or video chips for image transmission and fiber optic bundles to deliver light, rigid endoscopes offer the best image quality and resolution of all endoscope types. A working channel found in some scopes allows instruments to be passed through so surgeons can work in real-time. Rigid endoscopes are commonly used in urology, gynecology, ENT, arthroscopy, endoscopic spine surgery and general surgery