It consists of a vertical rigid "tower" with one or more horizontal platforms extending out over a deep pool of water.
In platform diving, the diver jumps from a high stationary surface.
Most platforms are covered by some sort of matting or non-slip surface to prevent athletes from slipping.
Each level offers a distinct degree of difficulty (DD) and therefore can yield different scores for divers.
[3][4] Media related to Diving platforms at Wikimedia Commons