The art nouveau custom shapes are for use in Photoshop CC CS6 CS5 CS4 etc and Photoshop elements. The art nouveau custom shapes are for use on the PC and MAC OS X. The art nouveau custom shapes are all accessed via the custom shapes tool in the toolbar / custom shapes panel in Photoshop along with the cookie cutter tool in Photoshop elements. The art nouveau custom shapes are supplied in CSH format. The art nouveau custom shapes include many different artworks such as tangled art nouveau shapes, frame art nouveau shapes, embellished art nouveau custom shapes, mirror designs and many more.
You may be also interested in the art nouveau fonts set (especially as that can be used in many other applications and not just Photoshop and elements).
If you are looking for some swirls related sets then the swirls and flourishes custom shapes may be of more interest and they can also be used for frame custom shapes and all kinds of amazing artworks (also they can be used as a great source for patterns and strokes)