This 3-strand spiral is a single piece object: One band twists around a toroid to give the impression of three stands). Therfore, it remains its shape in any orientation, e.g. when attached to a necklace. The strands' thickness is 2.0mm which gives 'some' stability with strong&flexible material as well. Nevertheless, printing in silver or stainless steel is recommended - see identicals models (within my shop) with thinner walls which are more gracil and recommended for silver/stainless steel printing.
(Please have a look on the 1.0mm version for photos)
Because of the requirements onto material strength, this item is only available in stainless steel (with optional bronze- or gold-finish) or sterling silver. Please note: Polishing can only be applied to to surfaces facing outwards.