These dark hematite jump rings are 4mm with a thickness of 0.6mm. They work well with black chain and findings. They are made of stainless steel heavily plated in hematite / black.

They are unsoldered but will arrive in the closed position.

Non-tarnish and hypoallergenic.

Outside diameter when closed is 5mm.

Inside diameter is 3.4mm.

Wire thickness is 0.8mm (about 20 gauge).

All dimensions are approximate.

Sold in lots of 50 Pieces.