"First played by recording artist Maynard Ferguson, the
Holton MF Superbone could be described as the ultimate trombone.
Also called the double trombone, the TR395 combines all of
the characteristics of a slide trombone with all of the advantages
of a valve trombone. Musicians may perform any slide/valve
combination accurately and smoothly, while eliminating excessive
hand movements. It allows special effects from any pitch to
any other pitch as well as vibrato on any other pitch. The
TR395 Superbone is free-blowing throughout its diversified
system. Uniquely Holton"
Bore: 12.29 mm (.484")
Bell: 9.0" diameter hand-hammered yellow
brass with wire-reinforced rim
Pistons: Monel material, silent nylon valve
guides and stainless steel top-action springs
Tuning slide: Nickel silver outside slide
and brass inside slide with brass bow
Hand slide: Chrome-plated nickel silver
with seamless inner slide and integral chamfered stocking.
Nickel silver outside slide
Hand grip: Chrome-plated
Waterkey: Nickel silver
Finish: Clear-baked epoxy lacquer
Case: Deluxe wood shell