Barbara P.
The Koa wood is an excellent match color wise, to a necklace that I have, which is why I searched for a pair of Koa earrings.
They're a little smaller than I wanted, but that's on me, for not bringing out my ruler in advance!
I have switched out one of the things in the back for attaching. It slid too easily and I was afraid I'd lose it.
So, making sure those are tight is my only suggestion.
Mahalo nui loa