Approx. 4mm big and 0.7mm thick round jumprings (soldered), made of stainless surgical steel.
Sold per pkg of 1g (approx. 29-30 jumprings).
Nickel safe
Stainless and tarnish resistant
Surgical steel is highly tarnish resistant and a great alternative to sterling silver. If you need jewelry findings that last and does not cost too much, surgical steel is a great choice.