Product Overview
Custom BT#1.5 Trombone Mouthpiece
Inner diameter: 1.087" or 27.6096mm
Bore Size: Standard - .290" or 7.366mm, Symphonic - .295" or 7.493mm
Cup Depth: 1.439" or 36.550mm
The BT#1.5 is available in both the heavy or light weight blank style.