A highly developed grip glue, specially formulated to give a secure bond without damaging the grip and made by Renthal.
It is important when installing Renthal grips that you use Renthal grip glue. Other brands of glue may react with the rubber compound in the Renthal grips and destroy the grip. This is especially important when installing Renthal soft compound grips.
For instructions on installing grips check out advice from Renthal.