Designed to boost guitar performance, Black TUSQ XL is precision engineered and specially formulated to bring out the hidden harmonics and richness in every note. Black TUSQ XL is based on the highly resonant TUSQ man made ivory and impregnated with PTFE, the slipperiest substance on earth, to improve the tuning performance of the guitar.
|Best tuning stability|| Impregnated with PTFE
|Increased harmonic content|
||E to E