Dave Guardala Booster 2 Copper GP
                                
                                
                             
                            
                         
                            
                            
                        Dave Guardala Booster 2 Copper GP, Booster, 18.9 mm diameter, Can be attached directly to the mouthpiece or neck, Better intonation, Easier playability and response, Richer sound, Wider dynamic range, Chic Dave Guardala design, Gold-plated copper, 100% Made in Germany@+*Suitable for the Following Metal Mouthpieces:*@+@+, Bari Tenor, Blancher Tenor, Dave Guardala Tenor, Bari Alto, Beechler Bellite Alto, Dukoff Alto, Berg Larsen Alto, Otto Link Alto met. (old Model), Yanagisawa Alto, Jody Jazz Tenor