GR Compu-Bal trumpet mouthpiece 63 rim BR_CLEAN It also makes fantastic practice

It also makes fantastic practice aid for the experienced player and is great for keeping in shape for that important up-coming gig when on the road…

The specially designed Optimal Pressure System fits right into your trumpet and works with your normal mouthpiece top to teach you to use less pressure while actually playing

These trombone cases offer a stylish design

Load Capacity: 3 kg (6

Feature the GR Classic Blank

GR Compu-Bal trumpet mouthpiece 63 rim BR_CLEAN It also makes fantastic practiceQuick Comparison The GR 63 Series cup diameter is somewhat similar to a conventional 10 diameter. Classic Blank is standard. Studio, Symphonic, and FatBoy are available as a special order on some models.