HooAMI 500pcs Stainless Steel Open Jump Rings Connectors Jewelry Findings Silver Tone 6mm Dia. Material:Stainless steel(Cadmium Free) Color:dull silver tone(not silver plated) Approx:6mm( 2/8") Dia.;Hole size: 3.6mm( 1/8") Thickness: 1.2mm Quantity:500pcs Great for connecting clasps, charms, links and other jewelry