Package:A Box of 450pcs Jewelry Making Accessory Set Jewelry Making Supplies Material:alloy lobster claw clasp:12X6mm and each color are 25pcs；5mm in jump ring and each color are 100pcs;bead tip knot cap each color are 100pcs Jewelry accessories kit is made of premium alloy,sturdy and durable.Which include 50pcs lobster claw clasps,200pcs open jump rings and 200pcs bead tip knot caps. Great to make DIY extension chain for your necklace,bracelet,or waist beads kit,great to make jewelry necklaces,bracelet,DIY crafts making or repairing with matched colors. You can prepare these lobster clasps,open bead tip knot sets and open jump rings for your own DIY making projects,or you can share them with your friends or family to complete the jewelry crafts together and bring lots of crafting fun.