The Ernie Ball Acoustic Sound Hole Cover 3-3/8in is a practical accessory designed to suppress feedback and block unwanted noise for steel-string acoustic guitars. This cover fits 3-3/8" (8.6 cm) diameter soundholes and is made from soft, durable rubber that will not harm your guitar's finish. Easy to install and remove, it helps keep your amplified sound clean and your instrument protected from dust and debris.

• Reduces feedback during live amplification
• Soft rubber construction is gentle on your guitar
• Fits standard 3-3/8" (8.6 cm) soundholes
• Keeps your instrument's interior free from dirt and debris