TUSQ delivers the optimum frequencies from the strings to the guitar top, producing richer and fuller tone. Guitar makers and players agree... acoustic guitars come alive with TUSQ man-made ivory. TUSQ is simply more efficient at transferring vibrations to your guitar top, resulting in big open lows and clear bell like highs.?? Bone and Ivory nuts and saddles have one inherent problem - they're made from organic materials, and therefore have inconsistent soft or dead spots because of their natural grain. TUSQ nuts, saddles and bridge pins are precision engineered under high pressure and heat, specifically to govern which frequencies are transferred to your guitar top (tone), and which frequencies remain in the strings (sustain).?? TUSQ is consistent from piece to piece, and within each piece, to offer you harmonically rich tones without the problems associated with natural materials. Measurements Length – 38.28mm / 1.506" Width – 3.18mm / 0.125" Height – 4.75mm / 0.187" Note: All Graph Tech nuts and saddles are slightly long and wide to ensure extra room to achieve a perfect fit for your guitar. This extra material can easily be removed with fine grit sandpaper.