This professionalquality trombone line is built for beginners, students, and professional performers. Constructed from durable brass and related alloys with careful polishing and lead welding where specified, these trombones deliver clear tone, accurate intonation, and rich resonance for practice, studio recording, and live performance. Key benefits Reliable build and materials: Brass construction and selected white copper or phosphor bronze components on certain models increase durability and tonal clarity. Clear, resonant sound: Thickened tube walls and polished finish produce a transparent timbre and strong resonance across registers. Comfortable handling and playability: Balanced weight, coordinated proportions, and sensitive flat key valves on models with valves make extended practice and performance easier. Versatile use: Suitable for graded exams, rehearsals, studio work, marching band, and stage performance. Easy tone switching: Smooth slide action and well designed controls support quick tonal changes during performance. Model specifications Type 100GP: Alto B flat; brass material; lead welding. Type 700: Alto B flat; brass bent tube; white copper drawn tube; phosphor bronze bell. Type 800: Tenor trombone; brass construction; brass mouth; lead welding. Type 801: Tenor trombone; lead welding; white copper outer drawn tube; brass mouth. Type 802: Alto trombone; lead welding; H62 brass body; 85 brass mouthpiece. Type 810: Tenor trombone; brass bend; white copper pull tube; phosphor bronze bell mouthpiece. Type 830: Bass trombone; lead welding; brass material. Type 900: Upright marching trombone; designed for marching band use; brass construction. Type 910: Trombone in C key; lead welding; gold lacquer surface treatment; brass material. Performance and playability Professionally polished finish and carefully matched proportions provide a balanced response and consistent timbre across registers. Thickened tubing enhances fullness of sound and realistic, expressive performance. Precise intonation and bright, penetrating projection make these instruments suitable for solo, ensemble, and orchestral settings. Typical applications Practice and study: Reliable construction and comfortable playability support daily practice and graded examinations. Stage and studio performance: Clear tone, accurate intonation, and polished resonance make these trombones dependable for concerts and recording. Marching and ensemble use: The Type 900 upright marching trombone is optimized for marching band performance. Choose the model that matches your range and playing context to enjoy a durable instrument with clear sound, sensitive controls, and consistent performance.