Kala Metal Round Wound 4

I bought those strings for substituting the silicon original string on my 9 years old daughter's Ukulele as she was not confortable with those stock "fat strings". She is now very happy and enjoys her ukulele bass :)
They sounds good and are easy to play, might need a bit more strength to press them but if a 10 years old kid can do it I don't think that's an issue at all. very satisfied. They are in my opinion a bit expensive...