The Ultimate Grip Installer tool makes it easy to install big butt/bubble grips and regular grips onto a shaft.
IMPORTANT: Please use a generous amount of solvent to lubricate the inside of the grip, and the tape (after applied on the shaft). We recommend watching this video here for an example.
The installer helps to widen the shaft end of the grip which then allows it to easily slide into the shaft. A notch opening on the side of the installer allows you to remove it from the shaft, once the grip is positioned properly.
Full instructions: How to use the Ultimate Grip Installer Tool