Silver plated concho can be used in many different ways. The 2 buttons on the back just sit on the posts. They DO NOT snap on and stay tight. They are designed to be crimped in place once on the post. Concho measures 1 " Not the color you need? No problem, paint it any color you want with metal spray paint.Please contact us for multiple quantity shipping discounts.We have more than what is listed if you have a larger project, just let us know and we can create a custom listing for you.