North American Black Walnut Wood Turning Pen Blanks | Wood Pen Blanks 5 Pack | 3/4" X 3/4" X 5" Small mill sourced - Salvage and sustainable harvested woods Walnut takes any finish and most complement the lovely satin sheen of the wood. It polishes well. Black Walnut is a stable dense wood with colors that range medium red to a rich chocolate brown Black walnut is normally straight grained and is noted for its beautiful grain character Wood and sawdust of black walnut are known to cause irritation of the eyes, nose, skin and lungs, and may stimulate allergies and asthma - precautionary measures are advised... a good dust mask is essential.