Set of 3 rings. Comes in 2 colour schemes: garden and gothic. Again, easy to match and goes well with almost anything.
I have a set of these as prototype, buttons are glued down strongly, will not be detached when dropped or in contact with water. You will need to really pull the button hard for it to detach.
Findings are brass. Buttons are acrylic.
Dimensions: ring is adjustable, 1.3-1.6cm(button diameter)