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 1.0mm which gives enough stability and is printable by shapeways. Please note: This model is also available with 1.2mm and 2.0mm thickness in my shop.
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.