This set of twenty  Spiral Swirl Backgrounds will add a bit (or a LOT!) of unexpected twists and turns to your next PowerPoint presentation, design project, or desktop wallpaper. The two  unique spiral designs are finely detailed with super-fine grunge textures, giving the spirals a subtle, speckled appearance.
Each design is available in eight  color options, plus two  different shades of gray, giving you the choice to use the design in full RGB color or grayscale.
All of the backgrounds in this volume are JPG files at 3872×2420 px and 300 dpi, so feel free to use them in printed materials or on the web. Add an intriguing twist to the background of your devices, presentations, and websites!