Pre-slotted String Nut Replacement Bring your bass back to life! The Graph Tech TUSQ P Bass-style Slotted String Nut has strong harmonic characteristics such as a clear low end and bell-like highs that will reinvigorate your guitar's sound. The hard, smooth TUSQ material helps ensure strong tuning stability — and it is pre-slotted for hassle-free installation. That's why Sweetwater bassists have been using it for years on their bass guitars. And TUSQ nuts will outlast most organic saddle materials. A Graph Tech TUSQ P Bass-style Slotted String Nut will make your bass a better-sounding and more sonically stable instrument.