I call it sizing do to the fact that there really is no way to make it smaller/bigger now. However (it hard to tell from this...) but it does fit really well!! It bigger then it should be, both in the sense that it is bigger then the original (as I am bigger then Thomas [token fat joke!]) and it is bigger in scale (IE, if you were to scale the original to my frame, this one is bigger then that). I will be buying plastic in the nest few days to start work on the visors.