Soft copper wire: 20 gauge (wire diameter 0.8mm): 40 cm (16 inch) and 20 cm (8 inch) 2cm (0.8 inch) for clasp Beads: 4, 6mm (abacus crystal) If after completion the length is insufficient, you can add ...

Have you tried this bead combination, it's also very interesting. You can use any wire size, any beads (have hole) you have. Large diameter wire will be more difficult to manipulate, but will increase ...