Sterling Silver and Yellow Gold-Filled Jump Ring Kit Priced Individually Findings 160 sterling jump rings: 2.4mm round, 3.2mm round, 4mm round, 3 x 2mm oval, 3.6 x 2.7mm oval. 80 yellow gold-filled jump rings: 2.4mm round, 3.2mm round, 4mm round, 3 x 2mm oval. These rings are ideal as attach rings for component designs, as strand or chain ends, and as links for creating chain.