Soft copper wire - 22 gauge (wire diameter 0.6mm): 2 pieces of 6cm (2.5 inch) for each link, 1.5cm (0.6 inch) for basic link ...

In the video I use: 20 gauge (wire diameter 0.8mm): 35cm (13 inch) 28 gauge (wire diameter 0.3mm): 80cm (32 inch) The crystal ...