Quantity: Sold per package of 5 jump rings.
Material: 925 Sterling Silver.
Style: Closed jump ring.
Thickness: 18 gauge or 1 mm
Gauge to mm Conversion Chart Gauge mm (approx.) 0.3mm = 28 gauge 0.4mm = 26 gauge 0.5mm = 24 gauge 0.6mm = 22 gauge 0.7mm = 21 gauge 0.8mm = 20 gauge 0.9mm = 19 gauge 1.0mm = 18 gauge