Check the listing for details. 10pcs Unbleached Compensated Guitar Bone Saddle for 6 String Martin Folk Guitar. Color: White, Condition: New. Listed at 10.71 USD. Description:This unbleached bone saddle will fit many Martin guitars with an under saddle pickup as an upgrade or replacement. The saddle is wave compensated for improved intonation. The radius is set at 16 inches to match many Martin fretboards and improve playability.High bone density can effectively improve the acoustic quality of guitar, lengthen the sustain and enhance resonance.Material: cow bone (Unbleached)Saddle Size: 73.66 x 2.62 x 10.16mm / 2.9" x 0.103" x 0.4"Radius: 406.4mm (16")Fit for most martin acoustic guitars Package includes:10x Guitar Bone SaddlePlease note that each guitar is slightly different and your bone saddle may need adjustments to the height, length, or thickness.