Static Interstitial.

Static Interstitials are displayed as full screen ads while the content page loads or after it. They are highly noticeable, but at the same time take into account the user experience as well.

File sizes:

300×250, 320×480, 480×320, 600×500, 640×960, 960×640, 768×1024, 1024×768, 1536×2048, 2048×1536

File types:

JPG, GIF, PNG