Frixion Multi-Pen Gel Pen  (Ink Color - Multicolor)

Frixion Ball4" can use 4 colors properly by one, it scratches them out any number of times, and is a 4-color ball-point with possible high convenience. an ink color -- black and red - blue and green. A nib is a 0.5-mm super thin type and is suitable for the writing to fine parts, such as a notebook and data.