Package contains 1620 jump rings with 6 sizes and 40 lobster clasps. A brass jump ring opener is provided to meet your different needs.<br><br> <b>Package includes:</b><br> Jump rings:<br> 4mm * 500pcs<br> 5mm * 400pcs<br> 6mm * 300pcs<br> 7mm * 200pcs<br> 8mm * 120pcs<br> 10mm * 100pcs<br> Lobster clasps:<br> 12mm * 40pcs<br><br> The jump rings and lobster clasps for jewelry making are all packed in a delicate acrylic box, making it easy to distinguish between sizes, and easy to carry and use.<br> This set is versatile, and the gifted brass jump ring opener is also very practical and can be used to make and repair bracelets, necklaces, earrings, and other jewelry-related items.<br>