This bracelet is done in barbed helm weave with goldfilled wire in 22g. The rings used are 4mm and 3.25mm ID. Anything smaller, it becomes too tight and larger will make it too floppy and not hold the pattern.
This bracelet is euro 4-1 but woven lengthwise with 4 rings per row. Also made in goldfilled 22g wire with rings of 3mm ID.