Adams VAWT30 Artist Vibraphone, Bars: Aluminium Alloy- nickel anodised finish. Graduating from 58- 38 mm, Pitch: A = 442 Hz, Range: F3-F6, Motor: 12V. Variable speed, 25-150 rpm. Traveller Frame: Adjustable in height, removable and height adjustable rails. Adjustable damping mechanism