The Graph Tech TUSQ Presentation Bridge Pins in 4mm Black/Mother-of-Pearl (6 Pcs) are high-quality bridge pins designed to enhance the appearance and performance of your acoustic guitar. Crafted with attention to detail, these bridge pins feature a stylish combination of black and mother-of-pearl, adding an elegant touch to your instrument. Made from Graph Tech's premium TUSQ material, they offer improved tonal transfer and sustain, resulting in enhanced clarity and resonance. The 4mm diameter is designed to fit most acoustic guitars, ensuring a precise and secure fit. With their striking aesthetics and tonal benefits, the Graph Tech TUSQ Presentation Bridge Pins are an excellent choice for guitarists who seek both visual appeal and improved sound quality.