G Spec Mechanical Pencil Limited Gold Gold Dr.Grip 0.5mm

limited gold gold Reduces strain on the neck, shoulders, and arms Since its release, the Doctor Grip series has established a new field of writing instruments that reduce fatigue. With the cooperation of Professor Yoshida, Department of Design, Faculty of Liberal Arts, Tokai University, we have created an ``easy-to-move writing instrument'' that focuses on moment of inertia based on experimental data. Optimal weight balance Achieves optimal weight balance by concentrating weight near the center of gravity. We made it easy to perform minute reciprocating rotational movements when writing.