The Uni Mitsubishi coloured pencils feature fine particle pigments with superior purity of colours wrapped in robust California incense cedar. The coloured pencils are designed for high transparency and colour saturation. Even subtle light colours can be expressed vividly on paper. Mitsubishi pencils' newly developed synthetic wax is blended with homogeneous coloured high-grade fine particle pigments. It is not only less likely to cause annoying blooming but also provides beautiful colouring that evenly blends into various types of paper. With a moderate hardness of the core, it has excellent wear resistance and is perfect for artwork. The core residue will not stain the artwork during production. The set includes 100 colours with a solid case. The case can be opened up and stand on your desk for easy access to your coloured pencils.