The Same as the Surgical Steel Segment Rings except that these are made from Solid 14K Gold. A really beautifully designed piece in the 14K Gold. Even though they are easier to work with then a Captive Bead Ring we recommend getting the Ring Opening Pliers for the Larger Gauges like 8 gauge and larger to make them even easier to open. We recommend this for any type of a Captive Ring. Also if you do not see the Gauge and Size that you need please email us and we will be happy to get a quote for you. The Gold used in this Piece is Totally Nickel Free and available in either; solid 14K Yellow Gold or solid 14K White Gold.