Check the listing for details. Graph Tech Black TUSQ XL Un-Lock Nut FR Original R2 Black. Color: Black, Condition: New. Listed at 21.21 USD. Take your Floyd Rose-equipped electric guitar to the next level with the Graph Tech Black TUSQ XL Un-Lock Nut. Crafted for Floyd Rose bridges, this replacement nut integrates seamlessly without any guitar modifications needed. With advanced slot design and customizable string action, it ensures your guitar stays in tune and plays smoothly. The Un-Lock Nut's thoughtful design considers the unique string behavior on Floyd Rose tremolos. The reimagined slots hold each string securely, eliminating issues like tuning instability. No more frustration fiddling with tuning machines between songs. Just perfectly locked tuning. The nut's precise radius matching also improves accuracy. Now you can select the ideal radius for your guitar rather than settle for a mismatch.