TUSQ is the most effective way to improve sound, and is used by top luthiers and guitar manufacturers around the world as part of their factory setup. TUSQ bridge pins produce a clear, rich sound and sustain that cannot be achieved with bone or synthetic materials, and is comparable to ivory. TUSQ bridge pins are designed to transfer string vibrations to the body most efficiently. It brings out the acoustic sound without any loss, from sparkling highs to rich lows. The harmonic content is also far superior to that of bone, allowing you to restore the wonderful sound that would have been lost due to the parts. For acoustic guitars, you will get the most benefit from having just three parts: the nut, bridge saddle, and bridge pins. Clear, rich sound and sustain. Designed to transmit string vibrations to the body most efficiently. Traditional type: 5.14mm Products may not be available depending on stock availability. In addition, if the item is out of stock, we may not be able to order it for you due to reasons such as it being discontinued or the manufacturer not having any stock. We appreciate your understanding in advance.