Features The sound hole cover and mute muffler are fitful for acoustic guitars. The set can greatly help to eliminate feedback and enhance stage volume, thus make your guitar practicing not disturb neighbors. Made from high-quality silica gel, sturdy and durable, ensuring a long service time. With great toughness, easy to bend, install and remove, can better protect the guitar. Small portable size and lightweight, convenient to carry while saving storage room. Stylish appearance design, a nice gift for guitar lover. Specifications Color: Black Material: Rubber Sound Hole Cover Size: 11 * 11 * 1.3cm/ 4.3 * 4.3 * 0.5inch Sound Hole Cover Weight: 74g/ 2.6oz Mute Muffler Size: 7.7 * 5.7 * 1.2cm/ 3.0 * 2.2 * 0.4inch Mute Muffler Weight: 17g/ 0.5oz Package Size: 14 * 11.5 * 2.5cm/ 5.5 * 4.5 * 0.9inch Package Weight: 95g/ 3.3oz Package List 1 * Sound Hole Cover 1 * Mute Muffler