eCrafty EC-2892 Silver Plated Metal Jump Rings Mega Mix for Jewelry Making, 5 to 12mm (Pack of 500) Our designer Mega Mix Customer favorites 5 bags of jump rings Over 500 jump rings total Omer favorites 5 bags of jump rings Over 500 jump rings total Silver-plated brass jump rings are 1mm thick or 18 gauge wire 925 real silver plated brass metal jump rings Lead-free, nickel-free, cadmium-free 4mm or 5mm, 6mm, 8mm 10mm 12mm mix Sold by weight - count is +/- 2% Every jewelry maker's box needs some of these