I really like these earrings for weekend wear (I work in a hospital & they're maybe a little too casual for the office).  The fit is good (adult female) with a little room to spare between the bottom of the lobe & the earring.  I could go a little smaller & still have a good fit.  They snap firmly shut & stay that way until you unsnap them.  My one complaint is that one of the earrings didn't close properly when they arrived & I almost lost one when it came open.  After I realized only one was snapping firmly shut I looked closely & realized the post wasn't lined up with the hole.  Luckily I have small jewelry pliers & I was able to bend the post until it met the hole correctly.  One star off for that, because they should be in working order when received.  Once that was remedied, they work great, look great & I love them.  They're great for guys or girls