10mm (3/8") ID (10mm) Jump Rings are large jump rings with a rope like pattern impressed on the side of the rings. This makes the wire slightly compressed side to side (not quite perfectly round) as well as having a half hard temper. These rings are made with 1.85mm thick wire (13 Gauge AWG) with an aspect ratio of 5.3. The aspect ratio should be considered approximate since the wire is not perfectly round. The outside diameter (OD) is 13.9mm.