Chunky blocks of concentrated pigment deliver bold, sweeping marks that transform into permanent ink when activated with water. Derwent packs each Inktense XL Block with pigment equivalent to eight pencils, giving you substantial material for large-scale work or extended projects. The pastel-like form handles differently than pencils, edge work creates sharp lines, while broad sides cover area quickly with intense color.

Dry application produces vibrant, controllable marks on paper, fabric, and other surfaces. Add water and the pigment becomes permanent ink, fixing into fibers and resisting subsequent water layers. This permanence enables layering techniques impossible with traditional watercolors; once dry, earlier layers stay put while you build additional washes over them. Fabric artists exploit this quality for textile work that survives washing.

Twelve highly saturated colors provide a focused palette for expressive work. The substantial block format suits gestural drawing, bold illustration, and mixed media applications where you need both precision edges and broad coverage. Hold these blocks like pastels for immediate, physical mark-making that bridges drawing and painting.