This velvety, soft, smooth charcoal is ideal for sketching smoky grays and blacks for soft charcoal drawings and layouts. As a drawing and sketching material they create velvety black marks - from uniform lines to rich fills. They also lend themselves to blending and shading in a variety of gradations.Details:Black3mm to 4mm stick diameter3 sticksExtra softNon-staining100% natural productCarbonized twigs