The virtual pavement consist of a multilayer Photoshop 5 file. On the background, that is fully tileable, you can place the detail layers. They are exposed so that they fit onto the paving tiles of the backround. This set contains: - The background - 5 lids in different sizes and shapes - 3 small lids - a cracked paving tile - and a oil spot
If you need more detail, there also is a pro pack available.