The Throttle Tender Motorcycle Cruise Control Assist fits all Harley Davidson models with the five pointed thumb screw. Easily installs in seconds and, once engaged, allows the throttle to stay open without the use of either hand. A simple push of the thumb engages the tender and a push with the finger disengages. For more information, to watch the installation video, or to buy directly from us, go to www.barefootwillies.com. What other customers are saying: -"love it got me one and then got one for a friend and then he got one for someone else works nice" (Howard Rouse) -"This thing is AWESOME! So simple and works so well - hard to believe. If you own a HD this is a must have!" (Damian Nichols) -"I never would have believed that a simple piece of plastic would work as well as a $90.00 item designed to do the same thing this does. I have been proven wrong! This works perfect! There is something wrong with you if you don't buy one of these they are that good...." (Alvin Lee) -"This simple little accessory is an excellent solution to the awkward star wheel screw provided by HD. Why didn't they think of it? Works perfectly." (Bill Molloy)