This is a replacement truss rod cover for Taylor guitars made with Indian rosewood to match appointments from various Taylor series. This truss rod cover features a two-hole design compatible with certain Taylor models. Check your guitar and read the instructions below to determine which two-hole truss rod cover is right for your guitar. This is the long two-hole truss rod cover. How to Choose the Correct Size Truss Rod Cover: Three-Hole Covers - All three-hole covers are the same size. Simply choose the material you’d like. We offer black plastic, rosewood and ebony. Two-Hole Covers - There are two sizes of two-hole covers: standard and short. You can determine the size of yours by serial number or by measuring. By Serial Number We used the shorter two-hole cover until September of 2003. We switched to a slightly longer (standard) truss rod cover so we wouldn’t have to cut the screw by the nut shorter, which was done to prevent it from hitting the truss rod below it. The transition date was September 17, 2003. Guitars with serial number 20030917xxx (2003 = year and 0917 = month and day) or later will take the longer covers. Guitars built before that date will take the short cover. By Measuring - If measuring, the distance between the screw holes is: Standard: 1.8” (1-51/64”, 4.57 cm) Short: 1.65” (1-21/32”, 4.19 cm)