Review (4/5): They stay pretty well and are highly adjustable
These stay pretty well. They stretch and they're highly adjustable with the two beads. Have to be careful to not let the beads fall off, however, as you'll never get them back on. You can even loop multiple together if you really want. They were smaller than expected from the photos on the listing but not really a big deal. They came in a little pouch for storage so you don't lose them. They do cut into the nipple a bit when you have to tighten it so it doesn't fall off, and this won't work for anybody with petite nipples but overall, it gets four stars.