Full tutorial video link above the title wire size to make ring diameter 1,5cm (can + a few centimeters to depreciate) 19 gauge ( wire diameter 0.9mm ) : 13cm( 5 inch) 24 gauge ( wire diameter 0.5mm ) ...
Soft copper wire for rings with diameter 1.5cm 20 gauge (wire diameter 0.8mm): 40cm (16 inch) If you are making 1.5cm larger diameter ring, cut a longer piece of wire. Can make straight or zigzag ...