The Pro Taper Clamp-On Full Diamond Grips employ the Clamp-On Grip System to offer the same comfort and stability you expect while simplifying installation, forget glue and tie-wire. The clutch-side Windowed Core reduces the outer grip diameter without compromising real estate for your palm and fingertips. The grip surface is comprised of a flexible, grippy compound that is then vulcanized for optimal adherence to the inner core. End cap areas utilize a tougher compound to promote durability and combat crash damage.