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