Download the file, unzip it and then:

PC Download Instructions

1. Pick the size you like.

2. Position your mouse cursor over the image.

3. Press the right mouse button.

4. Select "Set as Background" from the menu.

Mac OSX Download Instructions

1. Pick the size you like.

2. Drag the image to your desktop.

3. Go to System Preferences and open the Desktop icon.

4. Drag the image into the well.

Mobile Device Download Instructions

You can also install these wallpapers on your mobile device. If you don’t have an app to unzip the file, use a computer to send yourself an email containing the wallpapers sized for mobile. Then you can save the image to your mobile device and set it as your wallpaper.