Nice glide to the slides! Our nickel outer tuning slide tubes come in 30" lengths.  We can cut them for international shipments to save on shipping. They are made and fitted over the 30" brass...

Used in a bass trombone wrap   Outer span is 5.64"  Inner span is 4.40"  Tube OD is .640"  Tube ID is .594  Center to center is 5.10"    

Tuning slide crook for our tenor trombone wrap 5.18" OD span    4" ID span

Brass Inner Tubes have a nice fit in our nickel outer tubes.  6.5" long 

 Used in Our Bass Trombone Wrap, allows axial valves to align. Outer span is 2.10"  Inner span is .695"  Tube OD is .640"  Tube ID is .594  Center to Center is 1...