These are Lee Brevard invisible hoops. Very early in his career. His work was exclusive to Neiman Marcus Scottsdale, back in the day. His charms are legendary. He sadly passed away at a young age. The little crosses are precious. The hoop is the size of a dime. I wear these in my 2nd and 3rd pierced holes. I change out the charms a lot. I own a ton b/c I was obsessed with these little gems.