Gain hands-free control over the volume of your Hammond keyboard with the EXP-20 volume pedal. With the EXP-20, you can add expressive volume swells to your performances, with all of the quality that you'd expect from Hammond. The EXP-20 is for use with Hammond XK-1, SK-1, SK-2, and XK-3C keyboards. Get expressive with a Hammond EXP-20 volume pedal from GearNuts! Hammond EXP-20 Expression Pedal Features at a Glance: Specially calibrated by Hammond Adds expressiveness to your playing Works with Hammond XK-1, SK-1, SK-2, and XK-3C Get expressive with the Hammond EXP-20 volume