Vincent Bach Stradivarius 50B Dependent Dbl Rotor Trombone

The valve section has a bad knuckle on the bottom rotor.  But it “as is.”

These are used replacement parts! Use the drop-down menu to order the part you need. Check my other auctions for more replacement parts! If you don’t see what you need, message me! Repair Shops: Follow my store for all your used instrument replacement parts needs!