I do love these earrings because I wanted something I could put on and LEAVE on.  Something completely comfortable to sleep in.  These meet all those requirements.  But like the other reviewers, they are very very small.  Be sure to look at a metric ruler to get a better visual idea on the size.  They have a snap lock mechanism that keeps them from snagging or dropping off.  I would certainly recommend them, although I would definitely like a pair that's larger.