ERRATA CORRIGE: There was a little omitted phrase in the first version of this pattern, that has been corrected now, adding a photo of the result too.

This bracelets is 20,5 cm long and 3 cm large. Therefore it can fit wrists from 18 to 20 cm circa.

For smaller or larger sizes instructions can be found inside the pdf.
This same pattern can also be used for a necklace.