Stop-It friction disc washers. Place under knobs to create friction between the knob and pickguard or other surface to prevent accidental volume adjustments. Works great on effects pedal knobs too. Package contains 4 washers. Intended for 0.5 inch nuts.
WARNING: This product may contain a chemical known to the state of California to cause cancer, or birth defects or other reproductive harm. For more information visit www.p65warnings.ca.gov
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