Revitalize your AdTouch platform with a new Bumper & Grommet Set. Remove and replace your existing set once they are deformed or otherwise damaged. Changing your grommets can help reduce vibrations and limit string to frame friction, extending the life of each restring. Grommets and Bumpers are meant to fit with extreme precision and may require meticulousness during replacement. The use of an awl is recommended to help guide the grommets through the frame.