Designed to fit any of our elements, our stainless steel ring base comes in sizes 4-14 and is available in silver or gold. Just pop a spinner on the base by angling one “arm” of the disc through the open part of the u-shaped ring, and repeat on the other side. Pull the element straight up into the tips of the ring until it clicks into place. Things to keep in mind: We recommend keeping your ring base : spinner ratio somewhere between 1 : 1.5 - 3. This will allow customers to choose more than one element when purchasing a base. The bulk of our customers fall within sizes 6-9. We typically sell double the amount of silver as we do gold.