Kokuyo Mix Color Pencil. This Mix Color Pencil introduces a new fun way of coloring by combining various hues, resulting in unexpectedly rich and nuanced shades. They are designed to introduce kids to the idea of blending and layering colors. It\’s a unique art tool for discovering new color combinations from an early age.The set included ten mix color pencils and one sharpener. Pencil diameter: 10 color pencils (half size), 2 pencils mixed with 2 colors, 1 pencil sharpener Pencil shaft diameter: 10mm (slightly thicker than regular pencil) Colors: Crimson, Vermilion, Golden Yellow, Orcher, Light Pink, Emerald Green, Green, Blue, Brown, Gray Product of Japan