WOOD FLEX MANDREL - TROMBONEOur Wood Flex Trombone Mandrel offers a real improvement over conventional type table leg sticks. Used for holding instruments for all types of repairs, our mandrels are machine tapered from hardwood and then cut and quartered through the length of the tapered section. This unique design allows the sides of the mandrel to flex as the mandrel comes into contact with the inside of the instrument bell, and thus provides more contact area between the bell