Avon Air Cushioned Black 3-Ring Grips with Throttle Boss for 2008 & Newer TBW Harley-Davidson Touring models - AIR-91-ANO-FLY-BOSS Black Avon Air Cushioned Grips with Throttle Boss feature Ergonomic Avons seamless rubber grip that is very soft, tacky and durable. Throttle Boss end allows you to rest your hand on it to hold the throttle open. Grips have Black Billet End Caps and Trim Rings. Made in USA Fits 2008 and Newer Harley-Davidson Electra Glide, Ultra Classic, Street Glide, Road Glide, 2016 and Newer Softail models with handlebars that use Throttle by Wire