Fouls are penalized by either a one-minute penalty, for defensive fouls and technical fouls, or a loss of possession, for offensive fouls. In some cases, a penalty goal may be awarded in lieu of a penalty. Common fouls include "spinning" (striking an opponent's wheelchair behind the main axle, causing it to spin horizontally or vertically), "illegal use of hands" or "reaching in" (striking an opponent with the arms or hands), and "holding" (holding or obstructing an opponent by grasping with the hands or arms, or falling onto them).