Got these for my cartilage piercings primarily, but I also use the extras for my lobes on occasion. The smallest one in this bunch fit the best, could possibly go smaller if you like a tighter fit. Ease of putting on was a 4/5, I was able to put it in and clip it shut in less than 30 seconds. The only finicky thing is that it’s so thin and small; if you have larger fingers, grab some latex gloves or a friend to assist. I’ve been wearing this nonstop, day/night, showering, under hats, etc for oveSee full review