The Q-nut has been completely redesigned to offer a significant increase in durability. Please note that the new silicone ring, Q-nut cover and silicone insulator are now installed from the back of the neck instead of the front. Refer to the detailed instructions on u003ca href=u0022https://www.tregaskiss.com/documentation/how-to-install-the-new-q-nut-cover/u0022u003ehow to install the new Q-nut coveru003c/au003e for more information.