VALYRIA 1410pcs Mixed Stainless Steel Open Jump Rings 4mm 5mm 6mm 7mm 8mm 9mm 10mm Box Set for DIY Jewelry Making Findings Material:Stainless Steel(Lead and nickel free) Quanlity: 4mm 5mm 6mm 7mm 8mm 9mm 10mm(500 350 200 140 100 70 50) Size:4mm x 0.8mm;5mm x 0.8mm;6mmx1mm;7mmx1mm;8mmx1mm;9mmx1.2mm;10mmx1.2mm; Come with a plastic travel organizer;Suitable for all your jewelry making and craft ideas Jump rings are used as a connector where a single ring is desired.