In recent years, Jupiter's quality and consistency have skyrocketed as a result of hiring the world's best design engineers. Components are generated with incredible precision by computerized machinery so the highly trained craftspeople can concentrate almost entirely on exacting assembly and setup. All pads are hand-seated, all valves and tuning slides are hand-lapped, and all keys are hand-aligned and -adjusted. High-quality durable finishes are applied by hand, and each instrument is personally inspected and play-tested before leaving the factory. Model 852L is a excellent horn for the serious student. It features a .472" bore, 11-9/10" bell, rose-brass mouthpipe, 4 tapered rotary valves, and lacquer finish. Includes rotor oil and wood frame case.