One year of access to our 2D (EPS and TIF) and 3D rendered (PNG) Common Compounds graphics, for use in your projects. Following purchase, the product is delivered directly through the web site via user login. Art files can be downloaded directly through this interface, by use of the right-click button on your mouse, and using your browser's built-in file download function. Because of the nature of how this product works, use on mobile devices is not recommended. Several free samples are available here on this web site.