This design is based on the classic Celtic-style knot symbol for the World Tree from Norse mythology, Yggdrasil. I turned it into a seed, from before the worlds emerged, where each sprouting branch and root is interwoven into one.
Any size chain can be passed through the multiple holes in order to wear it. Chain not included.
The photos are of the Gold-Plated Brass and Antique Bronze Glossy materials.