This tube makes some rotary valve conversions much easier and cleaner.  It helps the valves align.

Used in tenor trombone wraps

 This is a tenor trombone 45 wrap tube 

Our newly designed tenor offset tube comes into the tenor valve squarely, and seats well in the valve port opening.  Excellent upgrade in this tube!

These tubes are typically used in pairs. 80 tubes replace the 45 and 90 tubes on an axial conversion.  Use 2 for a cleaner look, and a more open softer curve for air flow.