The ridge hand is a highly adaptable striking technique that leverages the ridge of the hand, which is the area located between the thumb and index finger. This technique allows for powerful and precise strikes. Additionally, the ridge hand can be modified to use the pad of the thumb, providing a softer yet effective impact, or the forearm, which offers a broader striking surface. This versatility makes the ridge hand a valuable tool in various martial arts and self-defence scenarios, as it can be tailored to suit different situations and targets.