Quantity: Sold per package of 20 jump rings. Material: Vermeil. 18K gold plated over 925 Sterling Silver. Style: Open jump ring. Thickness: 19 gauge or 0.9mm Outer Diameter: 5mm Weight: 1.68 gram per package of 20 pieces
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