The C.G. Conn 88H Symphony trombone features a .547" primary bore combined with a .562" bore traditional wrap F attachment 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 88H professional trombone is ideal for both symphonic and solo performance.