This 100 Piece Kit Includes Nickel Plated Split Rings For Connecting Jewelry 9mm & 12mm 50 Nickel Plated Split Rings Great for Connecting Clasps, Charms, Links & Other Jewelry This is a new set of 50 nickel plated split rings Great for connecting clasps, charms, links and other jewelry No soldering is necessary because they work like key chain rings Each measures approximately 9 mm (3/8") in diameter 50 Nickel Plated Split Rings Great for Connecting Clasps, Charms, Links & Other Jewelry This is a new set of 50 Nickel plated split rings Great for connecting clasps, charms, links and other jewelry No soldering is necessary because they work like key chain rings Each measures approximately 12 mm (1/2") in diameter