The Weril ET8170 Regium II Symphonic Series Professional Bb Trumpet offers the performer an instrument designed for projection and response. The ET8170 features a .460-inch bore with a heavy wall design and 4.8-inch bell for superior response and projection well suited for symphonic music. This trumpet also features stainless steel valves for worry-free performance. The Weril ET8170 Regium II Symphonic Series Professional Bb Trumpet includes a case and mouthpiece and is available in brush lacquer (ET8170) finish.