This
nut is made by Canada Graph Tech company,and their famous nut are used
for many famous guitar brand:Fender,Gibson,Taylor.....

TUSQ XL increases tuning stability so you can play harder, faster and longer.

Designed
to boost guitar performance, TUSQ XL is precision engineered and
specially formulated to bring out the hidden harmonics and richness in
every note. TUSQ XL is based on the highly resonant TUSQ man made ivory, but impregnated with Teflon to improve the tuning performance of the guitar.