With this product, your guitar will increase the point string volume, making the sound of guitar more clear and transparent. Features: Made of light plastic material, chemical stability, no corrosion. It can effectively extend guitar tone, and increase the point string volume. This product can enhance string energy, increase panel vibration, and make guitar sound cohesive and granular. The sound is clear and transparent, enhance the sound quality. It has excellent transparency and abrasion resistance. Perfect gift for yourself and the guitarist. Specifications: Color: black, white (optional) Material: plastic Item size: 40 * 20 * 10 mm / 1.57 * 0.79 * 0.39 in Package size: 70 * 55 * 10 mm / 2.76 * 2.17 * 0.39 in Package weight: 8 g / 0.28 ounce Note: The guitar in the picture is not included. Package List: 6 * Acoustic guitar bridge pins