At both end it has strong Bolt ring clasp and there is a choice of 5 mm or 6 mm 9ct gold Bolt rings. This safety chain/necklace extender features
14k Yellow Gold Rope Chain Necklace Extender 1.85mm Safety Chain, Barrel Clasp, Jewelry Cloth, 2.25: Clothing, Shoes & Jewelry
1983 Unusual 9ct Gold Double Row 3 Section Rope Chain 16 1/2 Box Clasp 14.1g - Finland
9CT YELLOW GOLD Eagle Pendant With An Inset Cubic Zirconia Eye £106.87 - PicClick UK
Gold Filled toggle clasp extension/extender for all your Toggle clasp necklaces. Available in 2, 3, and 4 (including the toggle ends) inches in
Gold filled Toggle clasp extender necklace extension 2 inch, 3 inch, 4 inch
14K Yellow Gold Curb Chain Necklace Extender Safety Chain 2.25 Inches (2.25mm): Clothing, Shoes & Jewelry
9CT YELLOW GOLD Floating Swinging Heart Pendant Necklace - 18” Chain £35.00 - PicClick UK
Solid Sterling 925 Silver Strong Snake Chain Necklace Anklet Bracelet
9ct Yellow Gold Belcher Link Chain Necklace 22 1/2 7.4g Bolt Ring Clasp 2.4mm
STRONG 925 Sterling Silver necklace necklet extender safety chain Bolt clasp
HEAVY & STRONG 925 Sterling Silver Necklace Extender Chain With Bolt Clasp. This heavy safety chain/necklace extender features strong 4.2mm wide
HEAVY 925 Sterling Silver Necklace Necklet Extender Safety Chain 1 Bolt Clasp