Ee In Jeh Ahp Sool (Techniques Against Two Attackers) is a set of techniques that teaches the Kuk Sool Won™ student how to apply many of the techniques and principles learned previously against grabbing attacks by two attackers simultaneously. In addition to requiring proper technique, joint angle, pressure point attack and proper body motion, Ee In Jeh Ahp Sool also requires the student to perform these techniques with both hands (including the "weak" hand). This helps to build strength and dexterity in the application of techniques with BOTH hands.