loop attached. I prefer the closed loop because, since the loop is made of thin wire, it can pull open if not soldered. This is extra security. They are stamped 14K GF. You'll receive 50. If you want more, check my shop for larger quantities, or contact me. There is also a listing of 100, 20 and 10 in my shop. I have gold filled and sterling silver spring clasps in 5 and 6mm, I also have lobster clasps, check below for links to these items.
6mm Gold Filled Spring Ring:
5mm Sterling Silver Spring Clasp:
6mm Sterling Silver Spring Ring:
10 Gold Filled 5mm Spring Clasps:
20 Gold Filled 5mm Spring Clasps:
Gold Filled Lobster Clasps:
Sterling Silver Lobster Clasps: