Saflyse Cherub Universal Sustain Pedal for Portable Keyboard Instruments Electronic Drum -Black Performs similar to an acoustic piano's sustain. Can also be used as a hands-free on/off switch for activating effects or even recording. Rugged design combines a built-in top tread and four rubber feet on the bottom for a non-slip grip. Compact and sturdy sustain pedal for use with any electronic keyboard. Momentary contact pedal with normally open or closed contacts by means of mode selector switch.