This an example of a travelling violation during a spin move. A player cannot slide their pivot foot along the floor while completing a spin move.

In this example, Purple 24 makes a spin move to the basket and establishes his right foot as his pivot foot. During the move, he slides his pivot foot along the floor while the ball is still in his hands, and then completes the move with an up-and-under shot with the right hand. This is a travelling violation by Purple 24.