Here is a pro-level Yamaha 646 Bb/F trombone. :hi: This is a medium-bore horn (.525) horn with F-attachment. Slide is excellent, valves works perfectly, and all 3 tuning slides work well. This is a great playing horn! Original case is clean, in great shape, and is very lightweight. World-wide shipping available! $1100 + shipping

Photos here: https://photos.app.goo.gl/pezBn7YqDMtqHEgn7

This horns are great.