VALYRIA 500pcs Silver Tone Stainless Steel 1.2mm Open Jump Rings Connectors (7mm(1/4")) Material:Stainless Steel Size:5mm(1/4")x1.2mm,hole size:2.6mm(1/8") Size:7mm(1/4")x1.2mm,hole size:4.6mm(1/8") Size:8mm(3/8")x1.2mm,hole size:6mm(2/8") Jump rings are used as a connector where a single ring is desired.