Good Looking - This guitar pins is made of pure copper. Full timbre, more stable than ebony bridge pin. Durable Brass Pins - And not easily to be broken. Its density and rigidity provide better vibration transfer through the bridge. Tone - Brass is much harder than bone, let the tone more brighter, stable, durable and attractive than , bone. Longer Service Life - Brass pins impossible to be broken, and the electric gold plating not only make it look beautiful, but also not easy to be oxidized. Widely Used - Fit for most acoustic guitar instruments, such as Martin,Taylor or any brand acoustic guitar. Features: Strong portamento, full timbre, more stable than ebony. Stable high middle low frequency. Strengthen the volume of sweep picking. Apply to acoustic Guitar and folk guitar. Six pieces in one set. Type: Guitar Bridge Pin Color: Coppery Material: Pure copper Product Weight : 5 G / 0.18 Ounces Size: 8x28mm, bottom diameter 4MM Package Include: 6* Guitar Bridge Pin