These metal jumprings are great for a variety of craft projects. Add chain and clasps to your keyrings with them or use them to make jewellery or chainmail, the options are endless. They come in a variety of sizes and finishes. These silver rings are 4mm in diameter and approximately 0.7mm thick. Use a jumpring tool or pliers to open and close them.
 
A pack approx 50 x 4mm metal jump rings in silver
Rings measure 4mm in diameter
Inner ring diameter is 3mm
Rings are approximately 0.7mm thick
Great for jewellery and craft projects