Renthal's most advanced grip, the dual compound is specially reinforced with DuPont™ Kevlar® brand resin particles which offers a very soft feeling grip, but also a very long lasting grip. This grip will last three times longer than a standard soft compound grip and is available in a half waffle pattern. The base material contains millions of randomly aligned resin particles which, as the grip wears through use, more and more of are exposed at the grip surface. Renthal is the only manufacturer to offer Kevlar grips in the industry. Small inner flange to allow for thumb throttle. Closed ended. 2 x 7/8" ID grips in each pack of grips. As used by many of the top professional racers around the world. DuPont™ and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.