This is an acoustic guitar saddle for GIBSON adjustable saddles. The TUSQ nuts and saddles provide a clear, rich sound and sustain close to that of ivory, something that cannot be achieved with bone or synthetic materials. TUSQ is designed to transfer string vibrations to the body in the most efficient way possible. From rich bass to sparkling high notes to rich bass, it brings out the instrument's original sound without any loss. Compared to beef bone, it has more harmonic components, allowing you to restore the wonderful sound that has been lost. When using with an acoustic guitar, you will get the best results by using TUSQ for the nut, saddle, and bridge pins. Graphtec GIBSON adjustable saddle style acoustic guitar saddle. Thickness: Approximately 7.14mm (0.281 inches). Length: Approx. 79.34mm (3.126 inches) Height: Approximately 9.65mm (0.380 inches) Material: TUSQ (artificial ivory) 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.