"Acro Ink" has an ink viscosity of approximately 1/5 that of our oil-based inks. In addition, by incorporating a lubricant to reduce the frictional resistance of the ball at the pen tip, the rotation becomes smoother, achieving a smooth and dense writing line. Of course, it also has the excellent water resistance that is characteristic of oil-based inks. Since its release in 1991, the Dr. Grip has been a standard "pen that is easy to use without fatigue." This is a multi-functional writing instrument that inherits that spirit and is designed to be used to the fullest. The calm paint and the shine of the metal parts will further enhance your appearance. By using the 4-color ballpoint pen for different situations, you can coordinate your writing to make it easier to see. With the mechanical pencil, you can write and erase your thoughts and feelings quickly and without hesitation. Dr. Grip 4+1 Limited Edition Light Blue Nuance Color Ballpoint Pen Multi-function Pen Pilot Dr. Grip Multi-function Ballpoint Pen + Pencil Brand: PILOT (Stationery) A multi-pen with a light blue soft-touch grip. - Color: Light Blue - Material: Plastic - Type: Multi-pen - Ink Color: Blue, Red, Green - Design Feature: Soft-touch grip Thank you for viewing.