Made of high quality metal with smoothing chroming,shining and sturdy,durable and do not fade so easily.There are 0.5*3mm,0.7*4mm,0.7*5mm,0.7*6mm,0.9*8mm and1.0*10mm in assorted 7 sizes. With wide variety of jump rings sizes and gauges from mini to large split rings. Around 1370pcs round open jump rings with a plastic travel organizer.Easy to pick up and choose which size is perfect for your jewellery making and craft ideas. The easiest ways to attach charms to your bracelet,necklace,anklet,chockers,wine glass,bags,keychains with jump rings.Perfect for jewelry making accessories,Jewelry repair kit,Jewelry findings kit,jewellery connector,jewellery pendants,beadwork craft,DIY ornaments. Perfect special handmade gift for your valentine's gift, Christmas gift,Father's gift,Mother's day gift,thanks giving gift,birthday gift,fareware gift,housewarming gift,anniversary gift,aunt's gift,uncle's gift,grandma's gift,grandpa's gift,unique gift for girls,women, men,children,etc. Here's what you'll need to attach a typical clasp to your beadwork: One or two open jump rings (small metal rings with cut seams) One pre-made jewellery clasp of your choice, such as a lobster clasp Two pairs of pliers that are either chain nose or flat nose pliers Optional: One metal figure-eight connector Enjoy Your Completed Jewellery.