Oh, BTW, I did a search on these and they are made by PursePal, but not the same PursePal that makes the hooks. They come three for $20 in a package, so I think Kitson is separating the packages and making extra $$.
But, they were sold out everywhere else I looked and I got the impression they might not be easy to find. I bought several from Kitson to create a little stash. Oh, use Kitsoncod for pennies off (not many pennies, but whatever works).