The Dr. Grip is an updated lineup, building on the foundation of the original series with notable advancements. It boasts the signature ergonomic thick-barreled grip, designed to minimize strain and fatigue during extended writing sessions, and features the innovative Shake Shake mechanism for effortless lead extension with a simple shake, ensuring seamless writing without the need to adjust your grip. This lineup also brings two novel enhancements to further elevate performance.Firstly, the Fure Fure (Shake Shake) Lock mechanism ingeniously prevents unintended lead extension while on the move. A simple twist of the grip activates or deactivates this lock. Conveniently, even when the lock is engaged, the lead can still be extended by pressing the knock, ensuring the inside of your pen case or bag remains clean from accidental lead marks.Secondly, this series sets a new standard in quiet design, achieving a significant reduction - approximately 50% - in both the sound of the lead extension knock and the operation noise of the Shake Shake mechanism compared to its predecessors. This remarkable quietness was attained by redesigning components and fine-tuning the internal spring tension to minimize component interaction, thus diminishing operational noise.Ergonomically optimized, the pencil features a shaft diameter that ensures comfortable, strain-free writing, thereby reducing muscular stress on the shoulders and arms. This advanced series embodies the Dr. Grip hallmark of fatigue resistance, offering an unrivaled writing experience.To complement its functional excellence, the new BLACK ACCENT series showcases a sleek matte white finish, contrasted by bold black accents. This striking combination exudes modern sophistication, seamlessly blending style and functionality.Body Color: Matte WhiteTip: 0.3mm Extra Fine PointDiameter: 14.6mm (0.6) x Length: 153.3mm (6.0)Quality Made in Japan