The C.G. Conn 8H Symphony trombone features a .547" bore that offers outstanding clarity and projection. The chrome plated nickel silver inner handslide tubes provide the ideal surface for smooth and quick handslide action. The rose brass material used in the professional bell and handslide material produces a deep, warm resonant sound while the clear lacquer finish adds a subtle warmth overall. The C.G. Conn 8H professional trombone is ideal for both symphonic and solo performance.