Tim Holtz-Distress Crayon Set: Set #4. Distress Crayons are formulated to achieve vibrant coloring effects on porous surfaces for mixed-media. The smooth water-reactive pigments are ideal for creating brilliant backgrounds, watercoloring, smudge effects and more! This package contains six 5-1/4 inch long crayons in assorted colors. Conforms to ASTM D4236. Non-toxic. Imported.