【Year-End/New Year's Discount Only】 This is a feedback buster that can be attached to acoustic guitars and electric-acoustic guitars. Brand new, unused. It suppresses unwanted reflections and resonance during live performances with acoustic guitars and electric-acoustics, preventing extra feedback and howling. Many of those sold in musical instrument stores are inorganic rubber types, which some people hesitate to attach. However, this is a wonderful soundhole accessory that combines functionality and design. Fits soundholes with sizes from 99mm to 103mm. Please take this opportunity. It is in the same condition as new, having only been photographed and inspected. However, as it is a handmade item, there may be individual differences and minor scratches from the time of manufacture. Please refrain from purchasing if you are sensitive to such details. Returns may not be accepted. #AcousticGuitar #AcousticGuitarParts #Soundhole #HowlingPrevention #FeedbackBuster