Avon Air Cushion Smooth Grips With Boss Throttle Assist For Harley With Dual Cable Throttle Avon Air Cushion Grips feel great and are very functional too with their Air Cushioned Absorption System (Acas) that softens Kraton rubber. The special core bar that creates air pockets inside the grip body giving you a dampen vibration that helps eliminate the tingle in your hands. Features: The ultimate in comfort and function, these Air Cushioned grips feel great and perform great Feature a special core bar that creates air pockets inside the grip body Air pockets dampen vibrations, help eliminate the tingle in your hands and soften the overall feel of the ride Soft serrated texture on the grip surface helps you hold on to your bike with no-slip confidence Feature a throttle assist that allows you to rest your grip on the bars while riding Finished off with only the best - 6061 billet aluminum end caps and collars