❤Size: The dimensions of the rings are 4/25 inch(4mm), 1/5 inch(5mm), 6/25 inch(6mm), 5/16 inch(8mm), 9/25inch(9mm), 2/5inch(10mm) outside diameter. The wire are 16Gauge - 20Gauge in diameter. ❤Quantity: 4mm about 500 pieces, 5mm about 350 pieces, 6mm about 200 pieces,7mm about 140 pieces, 8mm about 100 pieces, 9mm about 70 pieces, 10mm about 50 pieces. Totally about 1410 pieces. ❤Package Included: 7 mixed sizes meet your various jewelry making needs.The plastic travel organizer included, perfect for storing your jump rings. ❤Usage: These stainless steel jump rings(Lead and nickel free) are perfect for any project you have, whether to make chainmail armor, try out new weaves, make spectacular jewelry items or something else entirely! ❤Wide Application: Great for DIY your special & unique jewelry, excellent size for suspending small items from delicate necklaces, bracelets, anklets. 1410pcs Mixed Stainless Steel Open Jump Rings 4mm 5mm 6mm 7mm 8mm 9mm 10mm Box Set for DIY Jewelry Making Findings