[Sound output confirmed] Valve Trombone / Piston Trombone ⚫︎There is no brand name or model number on the main body. Total length: Approximately 120cm Includes: Main body, mouthpiece (MARCATO 12C), cleaning cloth, semi-hard case (MARCATO Sophia series) • Sound output has been confirmed. • For this listing, the pistons/tuning slides have been maintained with YAMAHA valve oil and Bach slide grease. • There is no sticking in the pistons/tuning slides. • There are some minor scratches, but there are no dents or damage. [Overview] ⚫︎Features of Valve Trombones • Pitch changes are made with valves (piston type) instead of a slide, allowing for quick and accurate switching of notes. Operation is more intuitive compared to slide trombones. • Due to the structure, maintenance of the valve mechanism is required. The airtightness of the pistons and the condition of springs and packing affect the sound and operability. • The tone tends to be slightly harder than that of slide trombones, but individuality is expressed through the model, bell material, and bore size. I am also listing other related products. #CircleOfUsedClothingAndMusic_MusicalInstruments Instant purchase is welcome!! Feel free to ask questions or leave comments. Yamaha