What makes These pencils special is that they can not be photocopied, hence the name "Non-Photo Drawing Pencils" These "Non Photo" drawing pencils are to be used to sketch your ideas before you outline your art. then you photo copy it and all you will see is your clean outlined art. The pencils are blue so when you overlay tracing paper over your art, you can easily differentiate between sketch lines and outlines. Try these out!
