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

Nickel Outer Slide Tube Fits Well With the Brass Inner Tubes.  6.625" Long

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

This brass Tenor Trombone Mouthpiece To Bass Trombone Receiver Adapter will allow you to play your favorite tenor trombone mouthpiece in your bass trombone! We have made these adapters for 30...