Trilio Railz is an example of design evolution...it is the replacement for a similiar design made in 2013 that has been improved for jewelry and the ATOMIXZ 3D Printed Jewelry lines. The other version of this has small hexagonal openings in the minor intersections of the structure for alternative jewelry designs...It is call "Trilio Railz Hoz", and can be found elsewhere in my site. This object is also available in all 3D printable sizes and materials upon request. More at: atomixz.com and briandrescher.com