24x17@ 300 dpi. This beautiful and versatile background comes with 20 layers. The BIGGEST background we have ever released. The layered file structure allows you to change the color and get the most flexibility of any background we've ever offered. Simply adjust the color to anything you like using color overlay in layer styles and you are all set. You can move the smoke, lightning, or paint layer to any area in your image. The perfect companion to the lightning clipping masks and brushes and the smoke brushes. Using these three tools you will be able to create memorable images in minutes.