<p>Open Jump rings:4mm in diameter, 0.8mm/21 Gauge thick(15g about 300pcs);</p> <p>Open Jump rings:5mm in diameter, 0.8mm/21 Gauge thick(15g about 250pcs);</p> <p>Open Jump rings:6mm in diameter, 1mm/19 Gauge thick(14g about 170pcs);</p> <p>Open Jump rings:7mm in diameter, 1mm/19 Gauge thick(14g about 120pcs)</p> <p>Open Jump rings:8mm in diameter, 1mm/19 Gauge thick(13g about 90pcs);</p> <p>Open Jump rings:10mm in diameter, 1mm/19 Gauge thick(12g about 44pcs);</p> <p>30pcs of Lobster Claw Clasps: size: about 7mm wide, 12mm long, hole: 1.2mm</p> <p>Jump rings are a basic component in jewelry making and design. It is popularly used as a connector in jewelry construction. It can be used for attaching charms to necklaces or bracelets.</p>