A locking nut for the 3rd slide stopper of a Bach trumpet.
 Made of brass with a silver-plated finish.
 It's brand new.

 It is designed to be securely fixed at the end, reducing the worry of losing the nut.

 When putting it away, make sure to securely fasten the inner screws to the main body so that the slide does not move.
 Since it is made with the same materials, shape, and weight as the genuine product, there will be no sense of incongruity.

 These are custom parts made exclusively by UPMAKE. Please give them a try!
 This item is sold individually.

 This product is compatible with current 180ML and 190ML models. Please note that it may not be compatible with special models.

 When attaching, twist it in until you feel resistance and secure it to the rod (please be careful not to force it after securing it, as this may cause damage).