4-1/3 octaves with select rosewood bars lightly stained, sealed, and lacquered to bring out the beauty and perfection of the wood. Triple-turned bars make the 1st and 2nd harmonic overtones match the fundamental exactly. Bars suspended on nylon cords between rubber-insulated posts for zero distortion. Solid maple end caps and rails plus seamless aluminum arched resonators. Large 4" casters, and naugahyde-covered end pieces. Height-adjustable frame. Includes mallets and shallow drop cover.