This is an awesome all metal flush mount cap from Drag Specialties. I installed this on my 09 (EFI) Sportster and it fit perfect. I've read some negative reviews of other caps that look metal but are just chrome plated plastic. This baby is all metal with a stock like rubber seal ring on it. Push down and twist your fingers a little and this thing pops right up. Then you can unscrew the whole thing pretty easy. When putting it back on the tank I like the positive tight seal this thing has, as opposed to the clicking slip lock that the stock one has. I took a Brillo pad to mine scuffed it up a little to give it that brushed stainless steel look, and it looks sweet. All in all it just a gas cap, but it works great, all metal construction and gives the tank that smooth clean line I like. Dennis Kirk and Drag Specialties are always a great combo!