Check the listing for details. Unbleached Acoustic Guitar Bridge Bone Saddle Compensated for Martin Guitar. Color: Yellow, Condition: New. Listed at 4.34 USD. Features: 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: 1x Guitar Bone Saddle Please note that each guitar is slightly different and your bone saddle may need adjustments to the height, length, or thickness.