Gold Over Sterling Silver Closed Jump Rings - Twisted Circle shape 19 ga 1mm thickness - 6mm (10 pcs).
Amazon.com: Lobster Claw Clasp with Closed Jump Rings for DIY Necklaces Bracelets Or Jewelry Making,4Pcs 925 Sterling Silver 12mm(0.47inch) Made in Italy
10mm 17g Closed Jump Rings - Sold By 10PK - carolinabeadshop.com
Brass Closed Jump Rings Raw Brass Circle Closed Jump Ring - Etsy