Proline Professional Sustain Pedal Works with most keyboards via polarity reverse switch Momentary switching Real piano pedal response Heavy-duty construction Stable-grip rubber sole for stability 6' attached cable Standard sustain pedal with switchable polarity Larger chassis with rubber skid on the bottom to prevent your pedal from jumping around on hard floors Silent operation, quality cable Now you can control your keyboard a more realistic piano feel with a Proline PSS2 Professional Sustain Pedal