What is Black TUSQ XL?Updated a month ago

Black TUSQ XL is a proprietary material precision-engineered, which is under high pressure and heat. It is permanently lubricated throughout so it reduces the friction between the nut material and the string.  It is specifically formulated to deliver the right frequencies with the optimum transfer rate to the top of your guitar every time.  Because of the way Black TUSQ XL is made, it is a consistent material rich in tone and harmonic content.