Check the listing for details. GRUV GEAR FretWraps String Muters 1-Pack Zebra MEDIUM. Color: Black, Condition: New. Listed at 12.99 USD. Finally, a professional string dampener / muting accessory that every studio, session player, and tapping aficionado should have! Slide on a FretWrap 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.The adjustable strap lets you fine-tune the pressure and dampening of the strings. Quickly slides over the headstock when not in use. No special guitar modification, installation, or tools required - Yet amazingly effective!SM - Fits 4-string basses, 6-string electric and acoustic guitars, and ukeleles MD - Fits 5-string basses, 7-string electric guitars & 6-string classical guitars LG - Fits 6-string basses & 8-string electric guitars*Please note the Zebra pattern may be different from images.