More Colors / Color Pen

The traditional color pen usually permits one or more fixed colors. The user can not change the color arbitrarily according their preference and requirement. The “More Colors” is designed based on the principle of toning, which can provide any color by toning the three basic colors in different ratios under the control of an embedded controlling system. It is flexible, convenient and interesting.The embedded controlling system combines the functions of pigment box and toning palette, which can control the output color by controlling the volume of every pigment and the process of mixing exactly.