These rainbow calsilica (cal silica) earrings are handcrafted from 14K/20 gold filled wire and rainbow calsilica cabochons (cab) from Mexico. I like calsilica. It gets a lot of comments when I wear it. It coordinates well with a lot of different colors. Although it looks good with dressy outfits, it also dresses down well to go with casual clothes and jeans. 14K/20 gold filled wire is basically a tube of 14K gold with a jeweler’s wire down the center for flexibility. It wears well, does not tarnish, and has the same allergy reactions (or non-reactions) as 14K gold. Each of my cabochon earrings are "one-of-a-kind" and you are selecting the actual one you will be receiving. approximately 1/2" x 1 3/4" 12mm x 45mm (each earring, including the finding) The earrings currently have lever back findings. They can be changed to hooks, posts, or clips if you prefer. These earrings are part of a set. If you want the entire set, do not purchase them from this screen. Click here to purchase the entire set. If you only want the earrings, Clicking the "add to cart" button here will purchase only the earrings.