A bit fiddly

I got these for my daughter and although once in and fitted they stayed secure and caused no allergic reaction or side effect we found getting the bar through caused absolutely no problems, but trying to screw on the tiny little ball took a long time and was very fiddly. 

For the price these did prove very good value compared to the price wanted in our local piercings shop and to be fair the ones from there are hard to fit also so anyone used to changing betwen bars will have this fitting down to a fine art so these wouldn't cause any problems.