Item Descriptions:

【Reduction of burden on neck, shoulders and arms】 Since its launch, the Doctor Grip series established a new field of writing instruments to reduce fatigue.

Under the cooperation of Professor Yoshida of the Faculty of Liberal Arts Studies, Tokai University, I realized "easy-to-move writing instruments" based on experimental data, focusing on the moment of inertia.

【Optimum weight balance】 Focus on the movement of the pen at the time of writing for the first time as a writing instrument.

Lightened both ends of the pen, concentrating the weight on the center of gravity, which is the axis of rotation of the writing instrument, realized a writing instrument "easy to move".

By decreasing the value [Moment of Inertia *] related to the rotational motion of the object, you can control the pen with less force and soften the burden on the hand.

■ Size: Maximum diameter 14.2 mm × 138 mm ■ Weight: 17.8 g ■ Core diameter: 0.7 mm

Features:

• Please enter model number Confirm this is compatible:
• Inquiry No: kingBDGS-60R-B
• Product specifications: 【Material】 Saya: Resin grip: Silicone rubber
• Product size: 138 x 14 mm
• Product Details: Oil ballpoint pen doctor grip G spec 1 x piece /

Product information:

Shipping Weight: 9 g

Package Dimensions: 1.27 x 4.32 x 18.03 cm