3.1 octave custom Deagan Parsifals C-extended high D 1 1/4" x 7/16", nickel plated brass resonators, bars are from a Deagan pipe organ. The keybeds & resonators are custom built, additional C#/D8 bars made from custom heat treated bar stock. Bars mounted on Deagan rack slip joint frame with seamless steel telescope tubing (no srews). Exceptional sounding instrument with that incomparable Deagan sound.