Used in tenor trombone wraps

Nickel Bass Gooseneck!  The sound is incredible! .586"-.630" ID x 2.97" Long

There is nothing like the sound of nickel tubes! Two 80 tubes can replace the 45 and 90 tubes on an axial conversion for a cleaner look, and softer more sweeping curve for better air flow. 

This tube is helpful in some tenor trombone wraps

This tube is used in some rotary conversions. Inner span is  2.15"  Outer span is 3.35"  Tube OD is .600"  Tube ID is .560"