Ernie Ball FretWraps are a professional string dampener/muting accessory that every studio, session player and tapping aficionado should have. Slide on the FretWraps to effectively cut overtones and sympathetic resonance during recording, live performance, two-hand tapping or any creative situation where you need that extra muting hand for cleaner takes without the unwanted string noise or ringing. An adjustable strap lets you fine-tune the pressure and dampening of the strings, and players can quickly slide the dampener over the headstock when not in use. No special guitar modification, installation or tools required.