This 100 Piece Kit Includes Nickel Plated Split Rings 16mm & 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 16 mm (5/8") in diameter 50 Silver 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