Graph Tech Tusq End Pin, White with Paua Shell Inlay The PP-7182-00 is a TUSQ end pin with a 4mm Paua Shell inlay.  Finally you can outfit your acoustic guitar completely with TUSQ. TUSQ delivers a rich tone, crystal clear bell like high end with big open lows and a significant increase in harmonic content and harmonic sustain.  Increased harmonics equals more richness and character in your tone.  It's the difference between a four piece choir and a twelve piece choir singing every time your play a note.   Consistent quality   Increased harmonic content   Ivory white in color        Measure  Shank Diameter  Length  inches 3.140"  11.82"   millimeters 7.83mm  30.00mm   Note: All Graph Tech End pins have a 5.2º taper.  If you find the pin shank is slightly too thick, you can easily sand any extra material with some fine grit sandpaper for a customized fit.