The bold hoops have a gold-plated brass finish. (laiton plaqué or)

With proper care and maintenance, gold-plated brass can last for many years and continue to look its best. Be sure to store it away from harsh chemicals or water, and clean it with a mild soap and water solution. Reapply the gold plating every few years to keep your jewellery bright and shining.

Also available in a slightly bigger variant here.