Pot Stopper helps to keep your pedal settings intact. This add-on just prevents unwanted changes, you can still adjust the controls if you wish.
The package includes three pcs. pot stoppers.
Instructions: Remove the pot knob by loosening up its screw with a small slotted screwdriver or a hex key. Slide the rubber washer down to the base of the pot and reinstall the pot knob by tightening its screw while pressing the knob against the rubber washer.