These gold jump rings are 4mm with a thickness of 0.8mm. These jump rings are made of stainless steel heavily plated in 24kt gold.
They are unsoldered but will arrive in the closed position.
Non-tarnish and hypoallergenic.
Outside diameter when closed is 4mm.
Inside diameter is 2.4mm.
Wire thickness is 0.8mm (about 20 gauge).
All dimensions are approximate.
Sold in lots of 100.