personally I didn't, it was really strange, im sure Moet measured a 4 by my measurements, but they wouldn't even slightly go on.....then I tried a 5 and couldn't get them on either. She ended up with a 6 which is why I believe they sound 'loose' with a bit of a loose sounding noise if that makes sense, but when I twist them by hand they don't really move. We only use them for a few weeks a year though so I have kept them.