Avon Performance Grips AVG-AIR-90-AN-FL-HT Heated Air Cushion Handgrips Black for Harley-Davidson Big Twin 08-24 w/Throttle-by-WireDescription for Heated Air Cushion Handgrips Black. Fits H D 2008up with Throttle by Wire. Features & Benefits: Three heat levels off, low and high Air ride for yours hands! Made with a special core bar that creates air pockets inside the grip body Air pockets dampen vibrations, eliminate the tingle in your hands and soften the overall feel of the ride Soft serrated texture helps you hold on with no slip confidence 6061 billet aluminum end caps and