Ortega Guitars Feedback eliminators fit into you instruments sound hole for a feedback-free performance. Designed to play at a far greater volume on stage without the risk of unwanted howling and feedback. Safe for the instruments finish due to its soft rubber. Features:
• Feedback Eliminator for Your Sound Hole
• 86mm (3.38”) Diameter
• Fits Most Nylon and Classical Guitars
• Made of Soft Rubber