 "Ballotini" is a cane technique in which several "vetro a fili" canes are picked up while laid side-by-side rather than a bundle, with a clear glass gather over them.This gather is shaped into a cylinder with the canes directed along the axis, so that the canes form a sort of “fence” across the diameter of the cylinder.When this is simultaneously twisted and pulled, the resulting cane has a helix of threads across its thickness.