- adult-oriented content
- a video and images
- a 3-D game
- just text with no image
Explanation: Ready Lightbox ads are responsive ads available from a template in AdWords. Ready lightbox templates use existing brand assets — including videos, images, product feeds, and maps — to create rich brand experiences.
Read more here: https://support.google.com/adwordspolicy/answer/6135143?hl=en