Multiple Colours - 72 unique colours, vibrant colours with long-lasting pigments, all blend quite well. Perfect for Adult Colouring Books, Doodling, Artist, a session of Relaxation and Colouring or as a Gifts for Drawing lovers. Premium Quality - Sturdy lead gives you smooth and uninterrupted colouring feeling, bold Lead for easier to lay down the colour .Wood oil based ink. Besides, each pencil has its own individual colour number.