These 14-karat yellow gold jump are used for jewelry designs and earrings with drops or dangles. They are made from coiled wire and have an slit that allows you to insert it through a ring, loop or hole in another finding. A basic component of the jewelry-making industry, these rings are used to attach rings for component designs, at strand or chain ends, and as links for creating chain. Solder rings closed to safeguard that connections are forever secured.