This trombone is the same as the 88H except it features an open wrap design to the F side, this can allow the F side to be more free blowing and as such useful in the lower registers. It does however protrude significantly behind the shoulder and this can be significant for younger players or those sitting very close to the pit wall!
8.5” Rose Brass bell
.547” primary bore through hand slide
.562” bore through F section
Open Wrap