The "EX-G" 5-button mouse, developed in collaboration with doctors to achieve the ultimate grip. With the cooperation of Dr. Ichiro Miyakawa, Director of Narashinodai Orthopedic and Internal Medicine Clinic, we focused on the "brachioradialis" muscle that moves the wrist and the "extensor digitorum" muscle that moves the fingers, and pursued the optimal angle and shape for the muscles of the hand that move the mouse. Because you can use it simply by resting your hand naturally, you don't need to apply extra force, and it achieves a comfortable feel that minimizes the strain on both the wrist and fingers. To achieve a "feeling as if you're not even gripping it," we've adopted a design with rounded corners and seamless construction. In addition, we aimed for an even more evolved grip, including a seamless operational feel that makes it easy to access each button.