NOT VERY STABLE
These are awful!  Because they have the spring extender it broke/twisted on the second day I wore them.  They are not comfortable either.  I gave two to a friend (who is very slim) but by end of day the looseness is relaxing, she too found them very uncomfortable.  I ended up ordering the &#34;old-fashioned&#34; plastic extenders and am quite satisfied, as is my friend.  They look better too, more like a button.
Rating: 1 stars