Zero Glide - ZS-3 Slotted Replacement Nut for Martin 3 Saddle You will also need an

You will also need an imperial allen key for adjusting the tension which is not included

This is usually referred to as bowing or "bellying" of the soundboard - The JLD Bridge System has been designed to fix this problem

5mm Spacing

Charge iOS Devices via Optional Adapter (Not Included)

the KickAss™ might seem like a simple

Zero Glide - ZS-3 Slotted Replacement Nut for Martin 3 Saddle You will also need anZero Glide ZS 3 Slotted Replacement Nut for Martin The Zero Glide Replacement Nut System borrows the "zero fret" concept to reduce string contact in the nut by up to 93%, increasing tuning stability, playability, and open string tone. It only takes a few minutes to install with absolutely no permanent alteration to your instrument. For Martin Style Guitar.