You can use Inktense pencils dry, but mix them with water and the color turns into vibrant ink. Once dry the color is fixed and you can work over the top of it, and, because it's permanent it is great for using on fabric such as silk and cotton. Set colors include Sun Yellow, Poppy Red, Violet, Bright Blue, Field Green and Ink Black. Details:Includes assorted colors6 pencilsPermanent when dryCan also be used on fabric